Best Cat Back Exhaust

Best Cat Back Exhaust for Trucks and Cars

A strong cat-back exhaust choice matches your vehicle and desired exit layout while providing clearly listed tubing, materials, and installation hardware. This roundup suits buyers comparing truck-specific systems as well as a Civic application, but fitment should come before sound or construction claims. The products range from Flowmaster systems with stainless tubing and hardware to Rough Country’s dual-exit F-150 kit and MBRP’s Tacoma system.

Some listings leave important details unclear: two truck kits do not identify a specific vehicle fitment in the supplied data, and one Borla listing describes a muffler without clear application information. Use the comparison to shortlist a compatible system, then verify the exact vehicle configuration and emissions requirements before ordering.

Flowmaster FlowFX Extreme is the Best Cat Back Exhaust pick here because its listing names Ford F-150 engine applications, 3-inch mandrel-bent 409 stainless tubing, factory-hanger installation, and included hardware. Those details make it easier to evaluate fit and installation than the listings with unclear vehicle applications. Choose it only if your truck and engine match the listed fitment; Rough Country Dual Cat-Back is a strong alternative when you want dual exits and black tips for a compatible F-150.

Our Top Picks

Flowmaster FlowFX ExtremeBest Overall

Flowmaster FlowFX Extreme

Lists several F-150 engine applications, 3-inch mandrel-bent 409 stainless tubing, factory-hanger installation, and all necessary hardware.

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Rough Country Dual Cat-BackDual Exit Choice

Rough Country Dual Cat-Back

Specifies 2WD and 4WD F-150 fitment, dual side or rear exits, 409 stainless tubing, black tips, and OEM-hanger installation.

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Flowmaster American ThunderAggressive Tone

Flowmaster American Thunder

Fits listed Silverado and Sierra configurations and includes hangers, hardware, mandrel-bent tubing, stainless tips, and a Super 40 muffler.

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Compare fitment, construction, and exit layouts

#ProductMaterialCompatible with Vehicle TypeWeightBuy
1PlasticCar32 lbView on Amazon
2Stainless Steel2009-2014 2WD Ford F-1502009-2014 4WD68 lbView on Amazon
3PlasticCar4 lbView on Amazon
4
DNA Motoring Silverado System4. DNA Motoring Silverado SystemStainless Construction
—Car—View on Amazon
5
Auto Dynasty Silverado System5. Auto Dynasty Silverado SystemShort-bed Silverado and Sierra owners
Stainless SteelCompatible with Silverado Sierra 1500 2007-2013—View on Amazon
6Alloy SteelTruck55 lbView on Amazon
7
DNA Motoring Civic System7. DNA Motoring Civic SystemOlder Honda Civic coupe and sedan owners
——24 lbView on Amazon
8
Magnum Flowsound Truck Kit8. Magnum Flowsound Truck KitTruck owners sourcing their own tips
AluminumTruck—View on Amazon
9
Truck Exhaust Kits Dual System9. Truck Exhaust Kits Dual SystemSingle-to-dual exhaust conversion planners
—Truck—View on Amazon
10
Borla 140085 Cat-Back10. Borla 140085 Cat-BackDrivers prioritizing XR-1 muffler technology
—Car9 lbView on Amazon

Detailed Reviews: Best Cat Back Exhaust

Flowmaster FlowFX Extreme

#1 · Best Overall

1. Flowmaster FlowFX Extreme

  • Material: Plastic
  • Compatible with Vehicle Type: Car
  • Weight: 32 lb

Best for: F-150 owners prioritizing ground clearance.

Why it ranks #1: Lists several F-150 engine applications, 3-inch mandrel-bent 409 stainless tubing, factory-hanger installation, and all necessary hardware.

A dump-style exit is the defining layout of Flowmaster’s FlowFX Extreme cat-back for specified 2009–2014 Ford F-150 engines, with the listing linking that exit to better ground clearance. Its 3-inch mandrel-bent stainless tubing and factory-hanger locations combine a stated flow focus with an installation approach that uses existing mounting points.

The 3-inch, 16-gauge mandrel-bent stainless-steel tubing is described as helping maintain exhaust flow for better power, while the Flow FX performance muffler is credited with a deep, powerful sound and increased performance. The dump-style exit is intended to improve ground clearance. Factory-hanger locations and included hardware support an at-home installation workflow. Listed fitment covers 2009–2014 F-150s with 3.5L, 4.6L, 5.0L, or 5.4L engines, so the stated engine range matters.

Pros
  • 3-inch, 16-gauge mandrel-bent stainless-steel tubing
  • Flow FX performance muffler with deep, powerful sound
  • Dump-style exit for better ground clearance
  • Factory-hanger locations and installation hardware included
Cons
  • The listed fitment is limited to specified 2009–2014 F-150 engines.

Skip it if you want selectable side or rear dual exits; Rough Country 96010 lists both options for 2009–2014 F-150s.

This is for owners of the listed 2009–2014 F-150 engines who want a dump-style exit, ground-clearance focus, and factory-hanger installation. Confirm the engine falls within its stated range before choosing this configuration.

Full product details
BrandFlowmaster
Compatible with Vehicle TypeCar
Included ComponentsFlowmaster 717980 FlowFX Extreme Cat-Back Exhaust System – 3.0" Diameter
Inlet Connection Size3 inches
Item Dimensions49.1 x 14.4 x 14.3 inches
Item Weight32 pounds
Dimensions49.1 x 14.4 x 14.3 inches
ManufacturerFlowmaster
Part Number717980
Manufacturer Warranty DescriptionWarranty
MaterialPlastic
Model Number717980

Listed on Amazon as: Flowmaster 717980 FlowFX Extreme Cat-Back Exhaust Kit 3 Inch 409 Stainless Steel Compatible with 2009-2014 Ford F-150 3.5L 4.6L 5.0L 5.4L engines

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Rough Country Dual Cat-Back

#2 · Dual Exit Choice

2. Rough Country Dual Cat-Back

  • Material: Stainless Steel
  • Compatible with Vehicle Type: 2009-2014 2WD Ford F-1502009-2014 4WD
  • Weight: 68 lb

Best for: F-150 owners seeking dual exits.

Why it ranks #2: Specifies 2WD and 4WD F-150 fitment, dual side or rear exits, 409 stainless tubing, black tips, and OEM-hanger installation.

Dual exit options, including side or rear exits, give Rough Country’s cat-back a layout choice for 2009–2014 Ford F-150 2WD and 4WD owners. Its 409 stainless-steel tubing and black dual-wall 304 stainless tips pair corrosion-resistant construction with a defined visual finish, while OEM-hanger installation avoids welding.

The 16-gauge 409 stainless-steel tubing and 409 stainless muffler and clamps are described as corrosion resistant, supporting buyers who prioritize those material details. Dual-wall 304 stainless black tips provide a contrasting finish, and the dual cat-back design allows side or rear exits. The system installs into OEM hangers with no welding, which can simplify the installation approach at home. Its listed application is 2009–2014 Ford F-150 2WD or 4WD, so buyers should stay within that stated truck range.

Pros
  • Corrosion-resistant 16-gauge 409 stainless-steel tubing
  • Dual-wall 304 stainless black tips
  • Side or rear exit options
  • Installs into OEM hangers without welding
Cons
  • At 68 pounds, the listed package weight makes handling a substantial part of installation.

Skip it if you need a 2009–2014 F-150 dump-style exit for ground clearance; Flowmaster 717980 lists that exit style.

This suits 2009–2014 F-150 2WD or 4WD owners who want dual exits, black tips, and a no-welding OEM-hanger installation. Its listed weight is 68 pounds, so plan for handling during installation.

Full product details
BrandRough Country
ColorStainless
Compatible with Vehicle Type2009-2014 2WD Ford F-1502009-2014 4WD
Included Components(2) 80 Deg. Exit Tubes, (2) (Black) Exhaust Tips, (7) Exhaust Clamps, Inlet Tube, Mid Tube, Exhaust Hanger Clamp, Extension Pipe, Muffler, Right Side Exit tube, Left Side Exit Tube, Left Side Down Tube, Poly Exhaust Isolator
Installation TypeClamp-On
Item Weight68 pounds
ManufacturerRough Country
Part Number96010
Manufacturer Warranty DescriptionLifetime
MaterialStainless Steel
Model Number96010
Additional InformationImportant information Safety Information "RC recommends a certified technician install lift systems. Knowledge of RC instructions, suspension procedures and post install checks are required. If a system is installed w/o knowledge and expertise it may impact the integrity/operating safety."

Listed on Amazon as: Rough Country Dual Cat-Back Exhaust for 2009-2014 F-150 2WD/4WD | V8-96010

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Flowmaster American Thunder

#3 · Aggressive Tone

3. Flowmaster American Thunder

  • Material: Plastic
  • Compatible with Vehicle Type: Car
  • Weight: 4 lb

Best for: Classic Silverado and Sierra sound seekers.

Why it ranks #3: Fits listed Silverado and Sierra configurations and includes hangers, hardware, mandrel-bent tubing, stainless tips, and a Super 40 muffler.

A Super 40 Series muffler paired with dual polished stainless tips defines Flowmaster’s American Thunder system for specified 1999–2007 Classic Silverado and Sierra 1500 trucks. Its moderate-to-aggressive exterior tone gives buyers a clear sound target, while factory-hanger mounting and included hardware are intended to simplify the installation workflow.

The 3-inch mandrel-bent 16-gauge aluminized-steel tubing is paired with a Super 40 Series performance muffler, combining a specified pipe construction with Flowmaster’s moderate-to-aggressive exterior tone. Dual 3-inch polished stainless-steel tips create a dual same-side exit. The system uses factory hanger locations and includes hangers and hardware, which can reduce the need to plan around new mounting points. Its listed application is narrow: 1999–2007 Classic Silverado or Sierra 1500, Extended Cab, short bed, with 4.8L or 5.3L engines.

Pros
  • 3-inch mandrel-bent 16-gauge aluminized-steel tubing
  • Super 40 Series performance muffler
  • Dual 3-inch polished stainless-steel tips
  • Uses factory hanger locations and includes hardware
Cons
  • The listed fitment is restricted to specified Classic 1500 Extended Cab short-bed 4.8L and 5.3L trucks.

Skip it if you have a 2009–2014 F-150; Flowmaster 717980 lists that truck and its specified engine applications.

This is aimed at owners of the listed 1999–2007 Classic Silverado or Sierra 1500 Extended Cab short beds with 4.8L or 5.3L engines. Its factory-hanger setup and dual same-side exit suit that specific application, not every truck.

Full product details
BrandFlowmaster
ColorMulticolor
Compatible with Vehicle TypeCar
Included ComponentsFlowmaster 17395 Cat-back System – Dual Same Side Exit – American Thunder – Aggressive Sound
Item Weight4 pounds
ManufacturerFlowmaster
Part Number17395
Manufacturer Warranty DescriptionCheck with the manufacturer
MaterialPlastic
Model Number17395

Listed on Amazon as: Flowmaster 17395 American Thunder Cat-Back Exhaust Kit 3 Inch Aluminized Steel 3 Inch Stainless Tips Compatible with 1999-2007 Classic Chevy Silverado GMC Sierra 1500 4.8L 5.3L Extended Cab Short Bed

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DNA Motoring Silverado System

#4 · Stainless Construction

4. DNA Motoring Silverado System

  • Compatible with Vehicle Type: Car

Best for: Silverado and Sierra flow-focused upgrade.

Why it ranks #4: Targets Silverado and Sierra crew or extended cab short beds, with T-409 stainless steel, mandrel bends, and included hardware.

T-409 stainless steel, mandrel bends, and TIG-welded CNC-machined flanges give this DNA MOTORING system a construction-focused profile for 2007–2013 Silverado and Sierra 1500 Crew or Extended Cab short beds. The listing connects those materials and bends to strength and durability, alongside a stated goal of improving flow and producing a deep, aggressive tone.

DNA MOTORING specifies T-409 stainless steel and computerized mandrel bends, tying the tubing construction to strength and durability. Its TIG-welded CNC-machined flange is described as resistant to pressure and corrosion, a practical detail for a component exposed to exhaust conditions. The system is listed for 2007–2013 Silverado and Sierra 1500 Crew or Extended Cab short beds, and hardware and gaskets are included as shown. Its stated performance aims include improved exhaust flow and a deep, aggressive tone.

Pros
  • T-409 stainless-steel construction
  • Computerized mandrel bends
  • TIG-welded CNC-machined flange
  • Hardware and gaskets included as shown
Cons
  • Fitment is limited to 2007–2013 Silverado and Sierra 1500 Crew or Extended Cab short beds.

Skip it if you own a 1992–2000 Honda Civic coupe or sedan; DNA MOTORING CBE-HC922-NRT lists those applications.

This fits buyers seeking a stainless, mandrel-bent cat-back for the specified 2007–2013 Silverado or Sierra 1500 cab and bed configurations. The listing’s stated compatibility is specific, so other years, cab styles, and bed lengths fall outside its supplied fitment.

Full product details
BrandDNA MOTORING
Compatible with Vehicle TypeCar
Included Components1 X Catback Exhaust System Hardware/Gaskets as shown
ManufacturerDNA Motoring
Part NumberCBE-CS09-4853L-4DR
Manufacturer Warranty DescriptionPlease contact the seller directly for warranty information for this product
Model NumberCBE-CS09-4853L-4DR

Listed on Amazon as: DNA MOTORING CBE-CS09-4853L-4DR Stainless Steel Cat Back Exhaust System [Compatible with 07-13 Silverado 1500/07-13 Sierra 1500 Crew/Extended Cab Short Bed]

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Auto Dynasty Silverado System

#5

5. Auto Dynasty Silverado System

  • Material: Stainless Steel
  • Compatible with Vehicle Type: Compatible with Silverado Sierra 1500 2007-2013

Best for: Short-bed Silverado and Sierra owners.

Why it ranks #5: Matches listed Silverado and Sierra crew or extended cab short beds and specifies stainless steel with a 3-inch inlet and 4-inch outlet.

A 3-inch inlet feeding a 4-inch outlet gives this Auto Dynasty cat-back a distinct tip-focused setup for compatible 2007–2013 Silverado and Sierra 1500 Crew or Extended Cab short beds. Its racing-design exit is paired with a stated focus on exhaust flow, offering those owners a performance-oriented replacement with an aggressive tone.

The stainless-steel construction provides the system’s material foundation, while the 3-inch inlet and 4-inch outlet define its connection and exit dimensions. Auto Dynasty says the design maximizes exhaust flow without sacrificing an aggressive tone, so it targets drivers seeking both a performance-oriented flow path and a more assertive sound. Fitment is specific to 2007–2013 Silverado and Sierra 1500 Crew or Extended Cab short beds; those outside that cab-and-bed configuration are not covered by the supplied compatibility details.

Pros
  • Stainless-steel construction
  • 3-inch inlet connection
  • 4-inch outlet connection
  • Racing-design exit with an aggressive-tone focus
Cons
  • Not legal for use on California emission models under the supplied disclaimer.

Skip it if you need a system identified as legal for California emission models; this listing explicitly says it is not.

For owners of compatible 2007–2013 Silverado or Sierra 1500 Crew or Extended Cab short beds, this offers a stainless cat-back with a performance-oriented exit. Check that cab and bed configuration, and note its California emissions restriction.

Full product details
BrandAuto Dynasty
Compatible with Vehicle TypeCompatible with Silverado Sierra 1500 2007-2013
Inlet Connection Size3 inches
ManufacturerAuto Dynasty
Part NumberAD-CBE-CS09-4853L-4DR-1
MaterialStainless Steel
Outlet Connection Size4 inches
Additional InformationImportant information

Listed on Amazon as: Auto Dynasty 4" Catback Exhaust Tip System For 07-13 Silverado Sierra 1500

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MBRP Tacoma Cat Back

#6 · Tacoma Fit

6. MBRP Tacoma Cat Back

  • Material: Alloy Steel
  • Compatible with Vehicle Type: Truck
  • Weight: 55 lb

Best for: 2016 Tacoma owners wanting bolt-on fit.

Why it ranks #6: Lists a Tacoma 3.5L application, 3-inch mandrel-bent tubing, bolt-on installation, and a performance tone; its tip is not included.

Mandrel-bent 3-inch tubing and clamp-on installation define the MBRP S5338P cat-back for the 2016 Toyota Tacoma 3.5L. The single-side exit and performance tone give the system a clear layout and sound direction, while its easy bolt-on installation is intended to make the upgrade more straightforward than a welding-based installation.

The 3-inch mandrel-bent tubing establishes the system’s specified pipe size and bend construction, while the single-side exit keeps the exhaust layout clearly defined. MBRP describes installation as an easy bolt-on process and lists a clamp-on installation type, so the setup is intended to avoid welding. It is specified for the 2016 Tacoma with a 3.5L engine. The package description says the tip is not included, a detail buyers should account for when planning the finished exhaust appearance.

Pros
  • 3-inch mandrel-bent tubing
  • Clamp-on installation type
  • Easy bolt-on installation is stated
  • Performance tone
Cons
  • The exhaust tip is not included.

Skip it if you need a supplied black dual-tip setup; Rough Country 96010 lists dual-wall stainless black tips for the F-150.

This is for a 2016 Toyota Tacoma 3.5L owner who wants a 3-inch, single-side-exit system with clamp-on installation. Factor in the separately unprovided tip when deciding whether its finished appearance suits your setup.

Full product details
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BrandMBRP
ColorNatural
Compatible with Vehicle TypeTruck
Included ComponentsMBRP S5338P 3" Cat Back, Single Side Exit, Aluminum
Installation TypeClamp-On
Item Weight55 pounds
ManufacturerMBRP
Part NumberS5338P
Manufacturer Warranty DescriptionProduct warranty applies only if sold by an authorized dealer. Check the MBRP website for a list of unauthorized resellers and further details.
MaterialAlloy Steel
Model NumberS5338P

Listed on Amazon as: MBRP S5338P 3" Cat Back, Single Side Exit for Toyota Tacoma, Aluminum

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DNA Motoring Civic System

#7

7. DNA Motoring Civic System

  • Weight: 24 lb

Best for: Older Honda Civic coupe and sedan owners.

Why it ranks #7: Names Civic coupe and sedan fitment and T-304 stainless steel with mandrel bends, but serves a narrower car application than the truck-focused options.

T-304 stainless steel and computerized mandrel bends are the defining combination in this DNA MOTORING cat-back for 1992–2000 Honda Civic coupes and sedans. The construction details target strength and durability, while the system is also described as supporting exhaust flow and an aggressive, deep, smooth tone for drivers seeking a more performance-focused sound.

The T-304 stainless-steel tubing gives this system its stated material specification, and computerized mandrel bends are identified as features for strength and durability. DNA MOTORING also describes a deep, smooth aggressive tone alongside smoother exhaust-gas flow, tying the sound and flow goals to everyday driving character. The listing includes cat-back hardware and gaskets as shown, which helps define what is supplied for installation; compatibility is specifically limited to 1992–2000 Civic coupe and sedan applications.

Pros
  • T-304 stainless-steel construction
  • Computerized mandrel bends
  • TIG-welded CNC-machined flange
  • Hardware and gaskets included as shown
Cons
  • Fitment is limited in the listing to 1992–2000 Honda Civic coupes and sedans.

Skip it if you own a Silverado or Sierra rather than a 1992–2000 Civic coupe or sedan; DNA MOTORING CBE-CS09-4853L-4DR lists those trucks.

This suits owners of a 1992–2000 Honda Civic coupe or sedan who want T-304 construction, mandrel bends, and a deeper exhaust note. Its stated fitment does not cover other Civic years or body styles.

Full product details
BrandDNA MOTORING
Included Components1 X Catback Exhaust Hardware/gaskets as shown
Item Weight24 pounds
ManufacturerDNA Motoring
Part NumberCBE-HC922-NRT
Manufacturer Warranty DescriptionPlease contact the seller directly for warranty information for this product
Model NumberCBE-HC922-NRT

Listed on Amazon as: DNA MOTORING CBE-HC922-NRT Stainless Steel Cat Back Exhaust System [Compatible with 92-00 Honda Civic Coupe/Sedan]

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Magnum Flowsound Truck Kit

#8

8. Magnum Flowsound Truck Kit

  • Material: Aluminum
  • Compatible with Vehicle Type: Truck

Best for: Truck owners sourcing their own tips.

Why it ranks #8: Lists a single 3-inch inlet, dual 2.5-inch tailpipes, a one-chamber muffler, and insulated hangers, but supplies no specific vehicle fitment.

A single 3-inch inlet feeding dual 2.5-inch mandrel-bent tailpipes gives the Magnum Exhaust Flowsound kit its defining layout. The included one-chamber muffler and cut-and-swedged tailpipes make it a more complete muffler-and-pipe package for truck owners, while the title makes clear that exhaust tips are not included.

The Flowsound one-chamber muffler connects a single 3-inch inlet to two 2.5-inch tailpipes, giving buyers a defined single-to-dual arrangement. The tailpipes are mandrel bent, cut, and swedged, while multi-depth insulated hangers and muffler clamps are listed to support the mounting setup. Because tips are excluded, buyers who want a finished tipped appearance must source them separately. The listing identifies the application broadly as a truck but does not provide a specific make, model, or year in the supplied details.

Pros
  • Flowsound one-chamber muffler included
  • Single 3-inch inlet to dual 2.5-inch tailpipes
  • Mandrel-bent, cut-and-swedged tailpipes
  • Multi-depth insulated hangers and muffler clamps
Cons
  • Exhaust tips are not included.

Skip it if you want tips supplied with a dual-exit system; Rough Country 96010 lists two black exhaust tips.

This suits truck owners seeking a one-chamber muffler and dual tailpipes who can source their own tips. The supplied listing gives no specific vehicle application, so verify that its broad truck description matches your installation needs.

Full product details
BrandMagnum Exhaust
ColorNo Tip
Compatible with Vehicle TypeTruck
ManufacturerMagnum Exhaust
Part NumberDK110-NT
MaterialAluminum

Listed on Amazon as: Flowsound 1-Chamber Mandrel-Bent Dual Truck Exhaust Kit without Tips

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Truck Exhaust Kits Dual System

#9

9. Truck Exhaust Kits Dual System

  • Compatible with Vehicle Type: Truck

Best for: Single-to-dual exhaust conversion planners.

Why it ranks #9: Provides 2.5-inch mandrel-bent dual pipes, clamps, and hardware without welding, but includes no muffler and gives no specific vehicle fitment.

A clamp-on 2.5-inch mandrel-bent dual-exhaust layout is the defining feature of this Truck Exhaust Kits system. The kit is described as converting a factory single exhaust to dual exits beneath the vehicle’s corner, enabling buyers to change the exhaust layout without welding while leaving the muffler choice open for a separately sourced component.

The 2.5-inch mandrel-bent tubing is specified for maximum flow, and the dual-exhaust layout converts a factory single exhaust to a dual exit. Because no muffler is included, buyers can source a performance muffler separately, but must plan that component as part of the finished setup. The kit exits under the vehicle corner and uses clamp-on installation with hardware included, so the listed workflow avoids welding. The description identifies 4.8L and 5.3L applications and says all wheelbases and trims.

Pros
  • 2.5-inch mandrel-bent tubing
  • Converts factory single exhaust to dual exits
  • Clamp-on installation with hardware included
  • Exits under the corner of the vehicle
Cons
  • No muffler is included, so a separate muffler is needed for a complete muffled setup.

Skip it if you want an included one-chamber muffler; Magnum Exhaust Flowsound DK110-NT lists one with its dual-tailpipe kit.

This works for buyers planning a single-to-dual conversion who are comfortable sourcing a muffler separately. Its stated tubing size, under-corner exit, and clamp-on format define the layout; account for the omitted muffler before assembling the system.

Full product details
BrandTruck Exhaust Kits
ColorNo Tips
Compatible with Vehicle TypeTruck
Installation TypeClamp-On
ManufacturerTruck Exhaust Kits
Part NumberAM25GMT0106NMFNT00455
Additional InformationImportant information

Listed on Amazon as: Truck Exhaust Kits – Cat-back 2.5" Dual Exhaust System

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Borla 140085 Cat-Back

#10

10. Borla 140085 Cat-Back

  • Compatible with Vehicle Type: Car
  • Weight: 9 lb

Best for: Drivers prioritizing XR-1 muffler technology.

Why it ranks #10: The listing gives no vehicle application or tubing and exit details, while its description focuses on an XR-1 Sportsman muffler.

Borla’s XR-1 Raceline Technology is the defining feature of this cat-back listing, which describes its muffler as engineered for exhaust emission and internal power generation. The product is also presented as easy to install, with fuel economy and horsepower benefits named as goals, making it a candidate for buyers focused on the muffler technology rather than specified vehicle fitment.

The XR-1 Sportsman Racing Muffler uses T-304 stainless steel, which the description connects to long-lasting durability. Borla also identifies longer spikes as part of the muffler design, alongside its stated aim of supporting exhaust emission and internal power generation. The listing calls installation easy and mentions fuel economy and horsepower, but it does not give a specific vehicle model application in the supplied details. That makes application matching the key step before treating this as a vehicle-specific system.

Pros
  • XR-1 Raceline Technology
  • T-304 stainless-steel muffler construction
  • Longer spikes are identified in the description
  • Easy installation is stated
Cons
  • The supplied details identify compatibility only as a car, not a specific make or model.

Skip it if you need confirmed fitment for a particular vehicle; Flowmaster 717980 specifies 2009–2014 Ford F-150 engines.

Consider this if XR-1 Sportsman Racing Muffler technology and T-304 stainless steel are priorities. The listing does not specify a make, model, or year application, so its broad car compatibility is not enough to establish fit for your vehicle.

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Full product details
BrandBorla
Compatible with Vehicle TypeCar
Included ComponentsMuffler
Item Weight9 pounds
ManufacturerBorla Performance Industries
Part Number40085
Manufacturer Warranty DescriptionManufacturer warranty
Model Number40085

Listed on Amazon as: Borla 140085 Cat-Back Exhaust System (40085)

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Avoid a fitment mismatch before ordering

The most consequential cat-back buying mistake is treating a make and model match as proof that every configuration fits. Several listings narrow compatibility by cab, bed, engine, or drivetrain: the Silverado and Sierra systems specify crew or extended cab short beds, while the Rough Country kit lists F-150 2WD and 4WD coverage. The Flowmaster FlowFX listing names several engine sizes, so compare your engine against its stated applications rather than relying on a general truck match.

Other listings provide only a vehicle category or no specific application at all; that is not enough to establish fit. Confirm the exact year, engine, cab, bed, drivetrain, and existing exhaust layout with the seller or manufacturer before purchase.

Also check whether the kit’s exit position clears your bumper and other vehicle components. A wrong configuration can mean a system that does not connect or route as expected, regardless of its material or advertised sound.

Plan around missing components and exhaust tone

A listed cat-back system may not include every component you expect, so inspect the kit contents and exit description before choosing. MBRP explicitly says its tip is not included, while Truck Exhaust Kits says its dual system has no muffler; the latter describes a conversion that lets the buyer source a performance muffler separately. By contrast, Flowmaster American Thunder lists hangers and hardware, and Flowmaster FlowFX says necessary hardware is included.

These differences affect the work required to complete an installation, not just appearance. Sound descriptions also vary: American Thunder is described as moderate to aggressive, while the FlowFX muffler is described as deep and powerful.

Those labels are not a measured cabin-noise comparison, so do not assume they predict highway drone or meet local noise rules. If sound is critical, seek application-specific sound clips or manufacturer guidance and verify what additional parts your chosen layout requires.

How to Choose a Cat-Back Exhaust

Vehicle and configuration fit

Look for a listing that matches your exact vehicle configuration, not merely its make. The Flowmaster FlowFX system names F-150 engine sizes, while Rough Country specifies F-150 2WD and 4WD coverage. The Silverado options narrow fitment to crew or extended cab short beds, and the DNA Motoring Civic system specifies coupe and sedan applications.

MBRP lists a Tacoma 3.5L application. In contrast, the Magnum and Truck Exhaust Kits listings do not identify a specific vehicle fitment, and the Borla entry provides no application details.

Choose a narrowly specified system when you can match every listed detail; if your exact configuration is not stated, confirm fitment before ordering rather than inferring it.

Tubing and construction material

Check both tubing dimensions and material because the listings differ substantially. Flowmaster FlowFX specifies 3-inch, 16-gauge mandrel-bent 409 stainless tubing; Rough Country lists 16-gauge 409 stainless tubing, and DNA Motoring identifies T-409 stainless with mandrel bends. DNA Motoring’s Civic system instead lists T-304 stainless, while the Auto Dynasty system lists stainless steel and a 3-inch inlet.

MBRP specifies 3-inch tubing but describes its material as alloy steel. Stainless construction is a useful stated characteristic, but the supplied listings do not provide a direct durability comparison.

For a buyer prioritizing clearly specified pipe construction, favor the detailed Flowmaster or DNA listings; where fitment is more important, select the system that matches the vehicle first.

Exit layout, sound, and included parts

Choose the exit arrangement and included components that suit your truck and installation plan. Rough Country offers dual side or rear exits with black tips; Flowmaster American Thunder lists dual same-side exits and polished stainless tips. MBRP uses a single-side exit but excludes the tip, and the Truck Exhaust Kits system exits under the vehicle corner without including a muffler.

Sound descriptions range from Flowmaster American Thunder’s moderate-to-aggressive tone to the FlowFX system’s deep, powerful sound, but these are not objective loudness measurements. Buyers seeking a more complete stated kit can favor products listing hardware, such as FlowFX or American Thunder.

Buyers planning a custom muffler setup may prefer the muffler-free dual kit, provided its fitment is confirmed.

Which Cat-Back Exhaust Should You Choose?

Choose Flowmaster FlowFX Extreme if your F-150 matches its listed engine application and you want 3-inch stainless tubing with factory-hanger installation and hardware included. For a dual-exit F-150 setup with black tips and side-or-rear routing, consider Rough Country Dual Cat-Back. Silverado or Sierra owners with the specified cab and short-bed configuration can compare Flowmaster American Thunder, DNA Motoring Silverado System, and Auto Dynasty Silverado System; their construction and listed components differ, so check the exact fitment and exit layout.

For the stated Tacoma 3.5L application, MBRP Tacoma Cat Back lists 3-inch tubing but requires a separate tip. DNA Motoring Civic System is the clear car-specific option for listed Civic coupe and sedan fitment.

Treat the Magnum and Truck Exhaust Kits products as fitment-verification cases, and avoid choosing the Borla listing without application confirmation.

Frequently Asked Questions

How can I confirm a cat-back system fits my exact engine, cab, bed, and drivetrain?

Match every listed fitment detail to your vehicle before ordering: year, engine, cab style, bed length, and drivetrain. Check the product listing and manufacturer fitment information, and contact the seller or manufacturer if any detail is missing or conflicts. Do not assume a shared model name means the system fits.

Will a cat-back exhaust require changes to emissions equipment or inspection approval where I live?

Requirements depend on your location and the specific system, so check local emissions and inspection rules before buying. Confirm whether the system changes or affects any regulated equipment, and ask the manufacturer or installer about compliance documentation. A product title alone does not establish that a setup is approved for your area.

How can I judge whether a system’s exhaust tone will be too loud for daily driving?

Use sound clips and descriptions as a starting point, but recognize that recordings may not reflect how a system sounds in your vehicle. Ask the manufacturer or installer about expected cabin noise and tone, and check local noise limits. If you are sensitive to volume, look for reliable information before committing.

What should I check about installation hardware and hangers before ordering?

Confirm what the listing includes and how the system is intended to mount. For example, the FlowFX Extreme listing specifies factory-hanger installation and included hardware, while those details are not stated in every title. If installation requirements or included parts are unclear, ask the seller or manufacturer before ordering.

Should I choose a system with included tips or plan to source a tip separately?

Check the listing for tip inclusion and the intended exit layout before deciding. The stated Tacoma application for the MBRP system requires a separate tip, while the Rough Country F-150 system lists black tips and side-or-rear routing. Verify that the selected configuration suits your vehicle and preferred appearance.

Final Words

Start with exact vehicle fitment, not a shared make or model name. For a matching F-150 engine application, Flowmaster FlowFX Extreme is the clearest pick here; Rough Country is an alternative for a compatible F-150 dual-exit setup. Silverado and Sierra shoppers should compare the specified cab and bed fitments, while Tacoma and Civic buyers should verify their listed applications.

Treat unclear listings as reasons to confirm details before ordering.

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