Best Exhaust For Low Rider St: Comparing Pipes and Mufflers

#1 · Best Overall

1. YANGSHIZI LAF Pipes

• Compatible with Vehicle Type: Motorcycle
• Material: Alloy Steel
• Material Type: Alloy Steel

Best for: Harley LAF pipe builders.

Why it ranks #1: The listing covers Softail models through newer model years and includes flange kits plus O2 adapters, though it does not specifically confirm Low Rider ST fitment.

The Y-shaped, downswept layout avoids the transmission case, giving Harley Sportster, Softail, and Dyna owners a low-profile pipe arrangement for a custom or racing stance. Its 2-inch thickened dual pipes are also described as producing a deep, aggressive note with sharper acceleration response.

A built-in 18mm O2 sensor port and included 12mm adapter support sensor retrofits, while the direct-bolt-on installation type and included flange kits give DIY builders a defined mounting setup. The listing covers 1984–2025 Harley Sportster, Softail, and Dyna models, but says gaskets and mufflers are sold separately. Plan to source those parts separately if your setup requires them; the supplied kit is the pipes, flange kits, and O2 adapters, not a complete muffler-and-gasket package.

Skip it if you need mufflers and gaskets in the box; this kit includes pipes, flange kits, and O2 adapters only.

This suits Harley owners building a low-profile LAF setup who value the O2 adapter and direct-bolt-on layout. Confirm its stated fit, dimensions, compatibility, and included components against the intended setup before choosing it.

Listed on Amazon as: 2"LAF Exhaust Pipes w/Flange Kit for1984-2025 Harley Sportster Softail Dyna

#2 · O2 Adapter Kit

2. mhanewv LAF Pipes

Best for: Forward-control Harley owners.

Why it ranks #2: The 2-inch pipes include flange kits and O2 adapters, but fitment is limited to forward-control models and the listing excludes mid-mounted controls.

Its stated coverage includes 1984–2023 Softails, 1986–2023 front-mounted Sportsters, and 1991–2017 front-mounted Dynas, giving forward-control Harley owners a defined LAF-pipe application range. The pipes also have an 18mm O2 sensor port and include a 12mm adapter for sensor compatibility.

The 2-inch thickened pipes come with flange kits and O2 adapters, which gives installers the listed mounting and sensor components together. Fit is control-position dependent: the description says these pipes are for forward-control models and not mid-controls that interfere with the pipes. It also warns that the provided bracket does not suit every bike and that Dyna or Touring models may need modifications or adjustment. Check control placement and plan for possible fitment work before installation.

Skip it if you have mid-controls or need a bracket guaranteed to fit without modification; the listing flags both fitment limits.

Choose these pipes if your Harley falls within the listed years and has forward controls, especially when the O2 adapter matters. Confirm control clearance and allow for possible bracket or model-specific adjustment before installation.

Listed on Amazon as: 2"LAF Exhaust Pipes with Flange Kits for 1984-2023 Harley Sportster/Softail

#3 · Heat-Resistant Finish

3. RongTengKeJi LAF Pipes

• Compatible with Vehicle Type: Motorcycle

Best for: Loud forward-control Harley builds.

Why it ranks #3: These 2-inch black pipes include installation accessories and insulation straps, but the stated Harley fitment is for forward-control models only.

A straight-pipe, no-baffle configuration gives these black 2-inch LAF pipes their explicitly listed super-loud sound, while heat-resistant powder coating is rated to 1400°F. The stated Harley coverage spans selected Softail, Sportster, and Dyna models, with forward controls required.

The included 18mm O2 sensor port and 12mm adapter address sensor connection needs, and the package also lists four thermal insulation straps and installation accessories. The fit range covers 1984–2023 Softails, 1986–2023 front-mounted Sportsters, and 1991–2017 front-mounted Dynas, but excludes mid-mounted footpeg models. Bolt-on installation is listed; check your control arrangement before starting, and expect the unbaffled configuration’s sound to be very loud rather than subdued.

Skip it if you need a quieter, baffled exhaust or have mid-mounted footpegs; this listing specifies no baffle and forward controls only.

These pipes suit forward-control Harley owners seeking a loud, black LAF setup and the included insulation straps. Confirm your model’s listed year and control layout, and avoid this option if a restrained exhaust note is important.

Listed on Amazon as: 2" LAF Exhaust Pipes Black For 1984-2023 Harley-Davidson

#4 · Removable DB Killer

4. PACEWALKER Muffler

• Compatible with Vehicle Type: ATV, Dirt Bike, Motorcycle, Scooter
• Material: Aluminum, Stainless Steel
• Material Type: Aluminum, Stainless Steel

Best for: Universal small-pipe muffler shoppers.

Why it ranks #4: Its removable DB killer and 38–51 mm adapter support flexible sizing, but the universal street-bike and scooter description does not confirm Low Rider ST fitment.

A removable DB killer lets riders change this muffler’s sound configuration, while its listed 38–51mm pipe compatibility spans street and sport motorcycles, scooters, ATVs, and dirt bikes. The 365mm aluminum-body muffler has a stainless-steel connector and a 51mm slip-on connection.

The supplied 38–51mm adapter and mounting clamp support connection to the stated pipe-size range, giving buyers a way to match the muffler to different exhaust diameters. Its removable DB killer offers a sound-adjustment option, and the listing describes the tone as deep and slightly throaty rather than terribly loud. Measure the existing pipe and check the connection before fitting; this is a muffler component, not a complete exhaust system.

Skip it if you need full replacement pipes rather than a muffler; the YANGSHIZI kit supplies dual LAF pipes and flange kits.

This suits motorcycle or scooter owners seeking a compact slip-on muffler with an adjustable DB killer. Match the existing pipe to the 38–51mm range, and remember that the package does not replace the full exhaust system.

Listed on Amazon as: PACEWALKER Motorcycle Exhaust Muffler Carbon Fiber 1.5-2" Inlet

#5

5. FatFlex Fishtail Mufflers

• Compatible with Vehicle Type: Motorcycle
• Material: Alloy Steel
• Material Type: Alloy Steel

Best for: 2017-and-newer Touring owners.

Why it ranks #5: The 36-inch slip-on design is described for newer Harley Touring models, not Low Rider ST; its stated fitment makes it a weak match here.

The 36-inch slip-on fishtail format lets owners of compatible 2017-and-newer Harley Touring models replace stock exhaust by loosening bolts, sliding the muffler on, and tightening it. A shark-fin fishtail tip and matte-black finish give the long muffler its specified appearance.

FatFlex lists 16-gauge steel construction, a 1-7/8-inch body diameter, and different left and right inlet inner diameters: 1-3/4 inches and 2-1/2 inches. Those dimensions make side-specific connection checks important before installation. Bolts and nuts are included, and the slip-on workflow is described as requiring no professional tools. Retuning is generally not required according to the listing, though it notes that tuning may depend on the setup.

Skip it if you need a listed Low Rider ST application; the RongTengKeJi LAF pipes specify Softail, Sportster, and Dyna coverage instead.

This is for owners of compatible 2017-and-newer Harley Touring models who want a long, matte-black fishtail slip-on. Check both side-specific inlet dimensions and model fit; the listing does not name Low Rider ST compatibility.

Listed on Amazon as: 36 Inch Fishtail Slip on Mufflers, Black

#6

6. Patriot Side Exhaust Kit

Best for: Adjustable side-pipe fabricators.

Why it ranks #6: This 60-inch shielded side-pipe system has a 2–2.5-inch slip-fit inlet, but its listing does not establish motorcycle or Low Rider ST compatibility.

Full 360-degree rotation at both the inlet and outlet gives this 60-inch shielded side-exhaust kit installation flexibility, while its chrome finish lends a show-style look. Its slip-fit inlet spans 2 to 2.5 inches, a useful range for builders matching the kit to an exhaust connection.

The listed six-sided louvered-core mufflers pair with a 3-inch outlet and are intended to provide strong flow with reduced exhaust back pressure. The 2-to-2.5-inch slip-fit inlet accommodates a range of factory and aftermarket exhaust connections, and rotation at both ends lets installers adjust the pipe’s orientation. Those dimensions and adjustment options help with connection planning, but the supplied information does not identify specific Low Rider ST fitment, so verify the vehicle and exhaust layout before choosing it.

Skip it if you need a listing-confirmed Harley Low Rider ST application; the YANGSHIZI LAF pipes list Harley model coverage.

This is for a builder prioritizing a long, chrome side-pipe look and adjustable inlet and outlet orientation. Treat vehicle fit as a key boundary: the supplied details give pipe dimensions, not a Low Rider ST compatibility list.

Listed on Amazon as: Patriot Shielded Side Exhaust Pipe Kit, 3 Inch Outlet, Chrome, 60 in, H1060

#7

7. EVIL ENERGY Muffler

• Compatible with Vehicle Type: Car
• Material: Stainless Steel
• Material Type: Stainless Steel

Best for: Universal muffler replacement shoppers.

Why it ranks #7: The 2-inch inlet and 3-inch outlet muffler is listed for cars, so it lacks the motorcycle-specific fitment needed for this search.

A 2-inch inlet paired with a 3-inch outlet gives this 14.6-inch stainless-steel muffler a defined connection size and outlet expansion for compatible exhaust setups. Its sound-absorbing cotton is described as producing a deep, low tone with added reverberation, making it an option for buyers changing muffler character.

The listed 2-inch inlet and 3-inch outlet help narrow the required pipe connections, while the 14.6-inch length gives a concrete measurement for checking available space. The double-layer stainless-steel walls and sound-absorbing cotton support its stated acoustic approach. The listing calls it universal but asks buyers to measure the car’s inlet; it does not establish motorcycle-specific or Low Rider ST fitment. Treat it as a muffler component, not a complete motorcycle exhaust system.

Skip it if you need a confirmed motorcycle muffler application; the PACEWALKER muffler lists motorcycle and scooter use with a 38–51mm connection.

This suits a buyer replacing a compatible car muffler who wants specified connection dimensions and a deep, low tone. For a Low Rider ST, the car-oriented listing leaves motorcycle fitment unconfirmed, so choose only with a verified application.

Listed on Amazon as: EVIL ENERGY 2 inch Muffler 2" Inlet (OD) 3" Outlet Exhaust Muffler