Special Offers
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Thunderheader™ Touring 2-In-1 Exhaust (Right Side Only) – Chrome (10' - 16')
The 1074S Model from Thunderheader™ Fits 2010 - 2016 Standard Length Touring bikes. This Product is Right side only. Includes Full Coverage Heat Shields. 12mm O2 Sensors. Falsee System Not Included, & Sold Separately.Regular price From $1,529.00Regular price From $1,529.00 -
Thunderheader™ X-SERIES™ For Big Cubic Inch Engines (84' - 16') - Black
Features and includes Full Coverage Heat Shields.12mm & 18mm O2 Sensor Ports. Falsee System Sold Separately.Regular price From $1,839.00Regular price From $1,839.00 -
Thunderheader™ X-SERIES™ FLH Touring 2-In-1 Exhaust (17' - 26') - Black
The Thunderheader™ X-SERIES™ Exhaust is our newest line in creating maximum horsepower. With our 2″ head pipes, equal length tubes, and a larger collector, this exhaust is made specifically for Harley-Davidson’s Milwaukee-Eight™ engine. Includes full coverage...Regular price From $1,839.00Regular price From $1,839.00 -
Thunderheader™ FLH – X-SERIES™ Exhaust For Big Cubic Inch Motors – Chrome (89' - 16')
Thunderheader™ X-SERIES™ exhaust is their newest line in creating maximum horsepower. With their 2 headpipe, equal length tubes, and a larger collector, this exhaust is made specifically for Harley-Davidson's Twin Cam engine. Includes full coverage heat...Regular price From $1,899.00Regular price From $1,899.00 -
Thunderheader™ ThunderCone Design (Pair) Softail - Chrome (18' - 24')
The 1352B Model Fits 2018 - 2024 Softails. Features their signature Thundercone Slip-On mufflers. Comes with install hardware. Heat shields sold separately. Fits 2018 – 2024 Softail Street Bob, Breakout, Fat Boy, Low Rider S/ST, &...Regular price From $795.00Regular price From $795.00 -
Thunderheader™ ThunderCone Design (Pair) Softail - Chrome (18' - 24')
Includes (2) Thundercone™ Slip-On mufflers. Comes with install hardware. Heat shields sold separately. The 1352 Model Fits 2018 – 2024 Softail Street Bob, Breakout, Fat Boy, Low Rider S/ST, & Slim.Regular price From $795.00Regular price From $795.00
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.