Exhaust Components

Thunderheader Dyna Patented Anti-Reversion design that produces maximum HP without sacrificing low end torque. Complete with all hardware needed to mount. Heat shields sold separately (set of 3 part #1126 or 1131b) Current lead time is up to 16 weeks on all Thunderheader Racing Products, we do not stock them. Race waiver needed for California customers (Click Link to Access)

Thunderheader FXR Patented Anti-Reversion design that produces maximum HP without sacrificing low end torque. Complete with all hardware needed to mount. Heat shields sold separately (set of 3 part #1126 or 1131b) Current lead time is up to 16 weeks on all Thunderheader Racing Products, we do not stock them. Race waiver needed for California customers (Click Link to Access)

Thunderheader Touring Designed to give maximum horsepower without sacrificing low-end torque 2-into-1 systems with patented collector design that directs spent exhaust gases in a spiral motion through four acoustical damping chambers Exhaust travels through these chambers at high velocity to scavenge spent exhaust gases from the combustion chamber and bring in a fresh charge of air/fuel mixture Anti-reversion design works to impede reverse flow through the system -- reverse flow can contaminate the incoming fuel/air mixture, which reduces performance and throttle response As reverse flow enters the collector, the diffuser deflects it through vents; the pyramidal trap and apertures impede the reverse flow, allowing time for the exhaust valve to close Flow director has equal area at each end, allowing exhaust gases to travel at a constant velocity over the entire length to improve exhaust scavenging Includes a set of full-coverage heat shields Current lead time is up to 16 weeks on all Thunderheader Racing Products, we do not stock them. Race waiver needed for California customers (Click Link to Access)

Thunderheader X Series The new THUNDERHEADER X-SERIES for Touring is our large diameter exhaust specifically designed for big cubic inch engines (107" and larger), built to produce big numbers. The X-SERIES is designed with 2" primary tubes with a 14 degree transition chamber to allow more exhaust flow. Our unique patented baffle in conjunction with our trademark tail cone is designed to allow a free flowing exhaust while creating a anti reversion condition in the pipe which will aid the air/fuel flow on the intake stroke to allow more fuel into the combustion chamber. This means more torque at the low & mid RPM ranges and maximum horsepower at top end. The X-SERIES comes complete with heat shields and all mounting hardware. Current lead time is up to 16 weeks on all Thunderheader Racing Products, we do not stock them. Race waiver needed for California customers (Click Link to Access)

Thunderheader X Series M8 Softail Designed to give maximum horsepower without sacrificing low-end torque 2-into-1 systems with patented collector design that directs spent exhaust gases in a spiral motion through four acoustical damping chambers Exhaust travels through these chambers at high velocity to scavenge spent exhaust gases from the combustion chamber and bring in a fresh charge of air/fuel mixture Anti-reversion design works to impede reverse flow through the system -- reverse flow can contaminate the incoming fuel/air mixture, which reduces performance and throttle response As reverse flow enters the collector, the diffuser deflects it through vents; the pyramidal trap and apertures impede the reverse flow, allowing time for the exhaust valve to close Flow director has equal area at each end, allowing exhaust gases to travel at a constant velocity over the entire length to improve exhaust scavenging Includes a set of full-coverage heat shields Current lead time is up to 16 weeks on all Thunderheader Racing Products, we do not stock them. Race waiver needed for California customers (Click Link to Access)

Thunderheader Heat Shields Dyna and FXR Matching heat shields for you Thunderheader Exhaust system. Current lead time is up to 16 weeks on all Thunderheader Racing Products, we do not stock them.

Bassani Road Rage 2 Mega Power Looking for a quality pipe that produces amazing horsepower, torque and sound? Also and American made pipe that fits your Harley Davidson Flawlessly? Bassani is your answer! Features: Designed specifically to address the needs of tuned motors built for high horsepower applications Features equal length stepped from 13/4 to 17/8 head pipes Tapered megaphone-style muffler body with 4’’ black billet end cap contrasting machined flutes Includes full coverage heat shields Oxygen sensor ports and plugs (12mm to 18mm) This version has a shorter headpipe to clear Dyna’s with Long Shocks Made In the USA Race waiver needed for California customers (Click Link to Access)

Bassani Road Rage 3 Exhaust Looking for a quality pipe that produces amazing horsepower, torque and sound? Also and American made pipe that fits your Harley Davidson Flawlessly? Bassani is your answer! Features: 2 into 1 stepped equal- length headers from 13/4 to 17/8 designed for maximum performance Utilizes an advanced inner collector for maximum performance Stainless Steel 304 Construction Hand TIG Welded 18mm O2 Ports with 12mm Adapters and Plugs Included Better Ground Clearance and Fitment Brushed Billet End Cap Included Upper Rear Heat Shield Included Removable Baffle Made in the USA Race waiver needed for California customers (Click Link to Access)

Bassani Road Rage III FXR Exhaust Looking for a quality pipe that produces amazing horsepower, torque and sound? Also and American made pipe that fits your Harley Davidson Flawlessly? Bassani is your answer! Features: 2-into-1 equal-length headers Stepped 1-3/4" to 1-7/8" Utilizes an advanced inner collector for maximum performance Stainless steel construction with hand TIG welding Made in the U.S.A. Fits '91-'17 models with mid controls and '07-'17 models with forward controls Race waiver needed for California customers (Click Link to Access)

Bassani Road Rage 2:1 FXR Mids Looking for a quality pipe that produces amazing horsepower, torque and sound? Also and American made pipe that fits your Harley Davidson Flawlessly? Bassani is your answer! Features: Stepped headers merge into a true reverse-cone megaphone muffler 1-3/4" headpipe steps up to 1-7/8" into the collector to increase flow and improve performance Removable spiral-core louvered baffle included Heat shields and mounting hardware included Made in the U.S.A. Not for use w/ S&S 111 motors Race waiver needed for California customers (Click Link to Access)

Bassani Road Rage 2:1 FXR Looking for a quality pipe that produces amazing horsepower, torque and sound? Also and American made pipe that fits your Harley Davidson Flawlessly? Bassani is your answer! Features: Stepped headers merge into a true reverse-cone megaphone muffler 1-3/4" headpipe steps up to 1-7/8" into the collector to increase flow and improve performance Removable spiral-core louvered baffle included Include mounting hardware Short, 12 in. muffler length Heat shields included Compatible with floorboards Made in the U.S.A. Race waiver needed for California customers (Click Link to Access)

Trask Assault 2-Into-1 Stainless Exhaust For Harley This dyno tested exhaust system is made from the highest quality 16 gauge stainless steel materials, mandrel bent, and then tig welded and gusseted for strength. Complete with custom heat shields including safety wired fasteners for a race inspired look. With potential gains from 8-10 horsepower on a stock H-D V-Twin, we are confident you will enjoy the smooth and consistent power band increase this exhaust will provide you.    Features: Suited for stock outputs up to 120 horsepower outputs Proudly researched, developed, and manufactured in the USA Race waiver needed for California customers (Click Link to Access)

Two Brothers Gen-II 2-Into-1 Exhaust For Harley Developed to surpass others currently on the market, Two Brothers offers a final product finished to the highest standards. In addition to the beautiful and long lasting materials used are the years of performance knowledge put into the design, offering ultimate torque and power.  Features: Full system exhaust including 2-into-1 muffler High quality finish Extremely corrosion resistant Made in the USA Race waiver needed for California customers (Click Link to Access) 

TMF Exhaust Gaskets TMF Gaskets made from premium materials for long life and correct fitment. When choosing these for your Harley, you cannot go wrong! Features: High-quality products for long-term reliability Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle Gaskets available in multiple types to best suit the intended application Extreme Sealing Technology (EST) gaskets feature embossed steel gaskets covered with a proprietary rubber material or solid copper, depending on the application Multi-Layer Steel (MLS) gaskets feature two outer Viton®-coated embossed spring steel layers with an inner steel layer to provide additional support CFM is a composite material with a steel tang center laminated to provide excellent heat tolerance without delaminating while providing a long lasting seal Single-Layer Steel (SLS) gaskets feature a stainless steel core and embossed outer surfaces that create a heavy-duty seal between the center steel layer and the gasket mating surfaces Aluminum Foamette Material (AFM) gaskets feature an aluminum core and a chemically blown, compounded nitrile synthetic rubber coating that is bonded to the outside layer; do not require gasket sealer Viton® gaskets feature a stainless steel core with a .001" thick coating of Viton rubber on both sides Made in the U.S.A. SOLD EACH (TWO REQUIRED)

O2 Bungs Reducers Save yourself the money on buying a whole new pipe. These will allow you to purchase a 18mm o2 sensor pipe and run your stock 12mm bungs. Easy removal in case you upgrade to a wide band tuner. Features: 18-12mm Reducers Sold in Pairs