Exhaust Systems

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 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 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)

Horsepower Inc Exhaust HPi Performance Exhausts are 100% handmade in USA, TIG welded, and feature a perforated stainless muffler interior.  Each exhaust is available in stainless finish, black cerakote or an "Electro Dip" option that gives a chrome style look.   All sales on exhausts systems are final and cannot be returned under any circumstances as they are all custom made to order. 12 week *minimum* lead time, after 12 weeks, they go in the order they were placed, longer lead times can happen as well. Features: Raw Stainless Hand Made  Flawless Tig Welding Style and Power FXR Bracket for Baker Available ($110 Charge After Order) No Cancellations Allowed Once Ordered (Could Take 4-6 Months to Recieve) 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 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)

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 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 Superbike Exhaust FXLR  Features: 2-into-1 headers welded to collector and muffler Stepped 1-3/4" to 1-7/8" headpipes Utilizes an advanced inner collector for maximum performance Stainless Steel Construction Partial Stainless Heat Shields Hand Tig Welding 18mm O2 Bungs with 12mm adapters Megaphone muffler Fits 2018-2022 Sport Glide and 2022 LowRider ST Made in the U.S.A. Race waiver needed for California customers (Click Link to Access)

Bassani Long Road Rage III Stainless 2-Into-1 System Features: Features stepped 1-3/4" to 1-7/8" equal length headpipes designed for maximum performance Included heat shields cover enough of the headpipes for heat protection, but end inches from the collector to show off stainless steel and hand TIG welding Tapered, megaphone-style, long muffler body or 4" straight can muffler body; systems mount off traditional saddlebag location Systems come with 18 mm and 12 mm O2 ports with sensors, adapters, and plugs Include removable baffle and end cap Made in the U.S.A. Race waiver needed for California customers (Click Link to Access)

Bassani Road Rage II 2-Into-1 Mid-Length System Features: 4" reverse-cone megaphone muffler body with matching billet end cap 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 Features hand MIG welding 18 mm and 12 mm O2 ports with adapters and plugs Includes mounting hardware and full heat shields Made in the U.S.A. Race waiver needed for California customers (Click Link to Access)

Bassani Road Rage II Mega Power 2-Into-1 Systems Features: Designed specifically to address the needs of tuned motors built for high-horsepower applications Headers stepped 1-3/4" to 1-7/8" Tapered megaphone-style muffler body with 4" black billet end cap with contrasting machined flutes Includes full-coverage heat shields Oxygen sensor ports and plugs (12 mm and 18 mm) Includes removable baffle Made in the U.S.A. Accepts optional Pseudo left-side megaphone mufflers for Bagger models for that twin-muffler look which feature matching non-functioning (no baffle) muffler with black billet end cap and contrasting flutes (not included) Race waiver needed for California customers (Click Link to Access)