Special Offers
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Thunderheader™ X-SERIES™ M8 Softail 2-In-1 Exhaust – Chrome (18' - 26')
The Thunderheader™ X-SERIES™ Exhaust is their newest line in creating maximum horsepower. With 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 heat shields....Regular price $1,899.00Regular price $1,899.00 -
Thunderheader™ X-SERIES™ Softail 2-In-1 Exhaust – Chrome (18' - 26')
Our 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 heat...Regular price $1,839.00Regular price $1,839.00 -
Thunderheader™ ThunderCone Design (Pair) Softail - Chrome (12' - 17')
The new Thunderheader ThunderCone design. The 1069B Model Fits 2012 - 2017 Dyna Switchback & Low Riders Only. Features their New ThunderCone Slip-On Design in Black. Heatshields sold separately.Regular price From $415.00Regular price From $415.00 -
Thunderheader™ FXR – Fits Models W/ Floorboards ONLY - Chrome (87' - 26')
The famous 1019 is back in production! With an all-new bracket design, the Thunderheader™ 1019 model Fits 1987 – 2026 FXRs. Features 1 3/4″ head pipes to our patented megaphone muffler design. Includes an all new...Regular price $1,079.00Regular price $1,079.00 -
Thunderheader™ X-SERIES™ M8 Softail 2-In-1 Exhaust – Chrome (18' - 26')
Our 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 heat...Regular price $1,899.00Regular price $1,899.00 -
Thunderheader™ FXR – Fits Models W/ Floorboards ONLY - Chrome (84' - 86')
The famous 1018 is back in production! With an all new bracket design, the Thunderheader™ 1018 Model on the 1984 – 1986 FXR’s Features 1 3/4″ head pipes to our patented megaphone muffler design. Includes an...Regular price $1,079.00Regular price $1,079.00
Weak stock components won't hold up when you're pushing your machine to its limits on the asphalt or dirt. Upgrade your build with heavy-duty motorcycle parts and hard hardware engineered for maximum structural strength, high-stress endurance, and mechanical reliability. Eliminate weak points, torque down your setup right, and keep your ride performing at full throttle.