Special Offers
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Thunderheader™ Stainless 2-into-1 Megaphone Exhaust - Chrome (99' - 05')
The 1026SS Model Fits 1999 – 2005 Dyna Models. Features 1 3/4™ head pipes to our patented megaphone muffler design. Our stainless version features a two piece exhaust that attaches with a stainless steel clamp. Includes...Regular price $1,249.00Regular price $1,249.00 -
Thunderheader™ Dyna Megaphone Exhaust Design Dyna - Silver Cerakote (99' - 05')
The 1026S Model Fits 1999 – 2005 Dyna Models. Features 1 3/4″ head pipes to our patented megaphone muffler design. No O2 Sensor Ports. Includes a transmission bracket, clamp, and all hardware to mount the exhaust....Regular price From $999.00Regular price From $999.00 -
Thunderheader™ Stainless 2-into-1 Exhaust - Chrome (06' - 17')
The New 1039SS Model Fits 2006 – 2017 Dyna Models Features 1 3/4™ head pipes to our patented megaphone muffler design. Our stainless version features a two piece exhaust that attaches with a stainless steel clamp....Regular price $1,249.00Regular price $1,249.00 -
Thunderheader™ Dyna Megaphone Exhaust Design - Black (99' - 05')
The Thunderheader™ design on the 1999 – 2005 Dyna Features 1 3/4″ head pipes to our patented megaphone muffler design. No O2 Sensor Ports. Includes a transmission bracket, clamp, and all hardware to mount the exhaust....Regular price From $999.00Regular price From $999.00 -
Thunderheader™ Dyna Megaphone Exhaust Design - Black (93' - 98')
The 1022B Model Fits 1993 – 1998 Dyna Models. Features 1 3/4 head pipes to our patented megaphone muffler design. No O2 Sensor Ports. Includes a transmission bracket, clamp, rubber mount, and all hardware to mount...Regular price From $1,019.00Regular price From $1,019.00 -
Thunderheader™ Dyna Megaphone Exhaust Design - Black (06' - 17')
The 1039B Model Fits 2006-2017 Dyna Models. Features 1 3/4″ head pipes to our patented megaphone muffler design. Comes with 18mm & 12mm O2 Sensor ports. Includes a transmission bracket, clamp, and all hardware to mount...Regular price $1,019.00Regular price $1,019.00
Stock powerplants leave crucial horsepower on the table. Upgrade your motor with high-flow air intakes, performance carburetors, high-lift camshafts, and complete big bore kits engineered for brutal low-end torque and high-RPM power. Seal up your cases, dial in your air-fuel mixture, and keep your engine screaming down the pavement.