Special Offers
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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™ X-SERIES™ Standard Pipe Softail Exhaust – Chrome (18' - 24')
The X-SERIES™ Exhaust is Thunderheader's™ newest line in creating maximum horsepower. With their 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™ 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™ X-SERIES™ M8 Softail 2-In-1 Exhaust – Chrome (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 full coverage heat...Regular price $1,899.00Regular price $1,899.00 -
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™ 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
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Restrictive stock mufflers choke off exhaust scavenging and muffle the raw roar of your engine. Upgrade to full performance exhaust systems and slip-on mufflers built to shed weight, increase horsepower, and deliver a loud, deep tone. Open up your exhaust flow, wake up the neighborhood, and let your motor scream.