Special Offers
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Thunderheader™ X-SERIES™ M8 Softail 2-In-1 Exhaust – Black (25' - 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 18mm and 12mm...Regular price $1,839.00Regular price $1,839.00 -
Thunderheader™ Shovelhead Exhaust – Black (70' - 83')
Thunderheader's Famous 1020B Custom Exhaust model! Features the 1020B design by Thunderheader. Fits all Shovelhead models without floorboards, Years 1970 - 1983 (Does not fit kickstart) Heatshields sold separately.Regular price From $999.00Regular price From $999.00 -
Thunderheader™ X-SERIES™ Softail “HIGH PIPE” - Chrome (18' - 25')
Our X-SERIES™ “High Pipe” Exhaust is our newest line in creating maximum horsepower. With our 2″ headpipe, equal length tubes, and a larger collector, this exhaust is made specifically for Harley-Davidson’s Milwaukee-Eight™ engine. Our “High Pipe”...Regular price $1,787.00Regular price $1,787.00 -
Thunderheader™ X-SERIES™ M8 "High Pipe" – Chrome (18' - 24')
Our X-SERIES™ “High Pipe” 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. Our “High...Regular price $1,899.00Regular price $1,899.00 -
Thunderheader™ FXR 2-In-1 Exhaust – Chrome (87' - 26') ***PRE-ORDER***
The 1019SS Model Fits 1987 – UP FXRs. 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. This will...Regular price $1,249.00Regular price $1,249.00 -
Thunderheader™ X-SERIES™ M8 Softail “HIGH PIPE” - Chrome (18' - 26')
Our X-SERIES™ “High Pipe” Exhaust is our newest line in creating maximum horsepower. With our 2″ headpipe, equal length tubes, and a larger collector, this exhaust is made specifically for Harley-Davidson’s Milwaukee-Eight™ engine. Our “High Pipe”...Regular price $1,787.00Regular price $1,787.00
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.