Thunderheader
Thunderheader specializes in high-performance motorcycle exhaust systems, including 2-into-1 headers, X-Series exhaust pipes and slip-on exhaust upgrades for Harley-Davidson Softail, Dyna, Sportster, FXR and Touring models. Known for aggressive sound and strong torque gains, the brand is widely searched for Harley 2 into 1 exhaust, performance motorcycle exhaust and Softail exhaust upgrade systems.
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Thunderheader - Black Exhaust fits '07-'11 Softail Models
Thunderheader
$1,019.00Thunderheader - Black Exhaust fits '07-'11 Softail Models Designed specifically for 2007 to 2011 Harley-Davidson Softail models, this Thunderheader™ exhaust features 1-3/4" head pipes that flow...$1,019.00 -
Thunderheader - Black Exhaust fits '86-'06 Softail Models
Thunderheader
$999.00Thunderheader - Black Exhaust fits '86-'06 Softail Models Designed specifically for 1986 to 2006 Harley-Davidson Softail models, this Thunderheader™ exhaust features 1-3/4" head pipes that flow...$999.00 -
Thunderheader - Black Exhaust fits '12-'17 Softail Models
Thunderheader
$1,019.00Thunderheader - Black Exhaust fits '12-'17 Softail Models Designed specifically for 2012 to 2017 Harley-Davidson Softail models, this Thunderheader™ exhaust features 1-3/4" head pipes that flow...$1,019.00 -
Thunderheader - Chrome Slip-On Thunder Cones fits '18-'24 Softail Models - Pair
Thunderheader
$795.00Thunderheader - Chrome Slip-On Thunder Cones fits '18-'24 Softail Models - Pair Includes (2) Thundercone™ Slip-On Mufflers, along with all necessary installation hardware. Heat shields are not...$795.00 -
Thunderheader - Chrome Exhaust fits '12-'17 Softail Models
Thunderheader
$1,109.00Thunderheader - Chrome Exhaust fits '12-'17 Softail Models Designed specifically for 2012 to 2017 Harley-Davidson Softail models, this Thunderheader™ exhaust features 1-3/4" head pipes that...$1,109.00 -
Thunderheader - Black Slip-On Thunder Cones fits '18-'24 Softail Models - Pair
Thunderheader
$795.00Thunderheader - Black Slip-On Thunder Cones fits '18-'24 Softail Models - Pair Includes (2) Thundercone™ Slip-On Mufflers, along with all necessary installation hardware. Heat shields are not...$795.00 -
Thunderheader - Chrome Exhaust fits '07-'11 Softail Models
Thunderheader
$1,109.00Thunderheader - Chrome Exhaust fits '07-'11 Softail Models Designed specifically for 2007 to 2011 Harley-Davidson Softail models, this Thunderheader™ exhaust features 1-3/4" head pipes that...$1,109.00 -
Thunderheader - X-Series Exhaust High Pipe w/Heat Shields 12mm & 18mm O2 Sensor Ports fits '18-'24 Softail Slim, Low Rider S/ST, Standard, & Street Bob - Black
Thunderheader
$1,723.00Thunderheader - X-Series Exhaust High Pipe w/Heat Shields 12mm & 18mm O2 Sensor Ports fits '18-'24 Softail Slim, Low Rider S/ST, Standard, & Street Bob - Black The...$1,723.00 -
Thunderheader - Black X-Series Exhaust High Pipe w/Heat Shields fits '18-'25 Softail Breakout & Fat Boy Models
Thunderheader
$1,723.00Thunderheader - Black X-Series Exhaust High Pipe w/Heat Shields fits '18-'25 Softail Breakout & Fat Boy Models The X-SERIES™ High Pipe Exhaust is Thunderheader’s newest performance...$1,723.00 -
Thunderheader - Black X-Series Exhaust High Pipe w/Heat Shields fits '18-'24 Softail Street Bob Models
Thunderheader
$1,723.00Thunderheader - Black X-Series Exhaust High Pipe w/Heat Shields fits '18-'24 Softail Street Bob Models The X-SERIES™ High Pipe Exhaust is Thunderheader’s newest performance line,...$1,723.00 -
Thunderheader - X-Series Exhaust High Pipe w/Heat Shields 12mm & 18mm O2 Sensor Ports fits '18-'24 Softail Slim, Low Rider S/ST, Standard, & Street Bob - Chrome
Thunderheader
$1,787.00Thunderheader - X-Series Exhaust High Pipe w/Heat Shields 12mm & 18mm O2 Sensor Ports fits '18-'24 Softail Slim, Low Rider S/ST, Standard, & Street Bob - Chrome The X-SERIES™ High Pipe...$1,787.00 -
Thunderheader - Chrome X-Series Exhaust High Pipe w/Heat Shields fits '18-'25 Softail Breakout & Fat Boy Models
Thunderheader
$1,787.00Thunderheader - Chrome X-Series Exhaust High Pipe w/Heat Shields fits '18-'25 Softail Breakout & Fat Boy Models The X-SERIES™ High Pipe Exhaust is Thunderheader’s newest performance...$1,787.00 -
Thunderheader - Chrome X-Series Exhaust High Pipe w/Heat Shields fits '18-'24 Softail Street Bob Models
Thunderheader
$1,787.00Thunderheader - Chrome X-Series Exhaust High Pipe w/Heat Shields fits '18-'24 Softail Street Bob Models The X-SERIES™ High Pipe Exhaust is Thunderheader’s newest performance line,...$1,787.00 -
Thunderheader - Black Exhaust w/ Heat Shields - fits '70-'83 Shovelhead without Floorboards (Does not fit Kickstart)
Thunderheader
$1,309.00Thunderheader - Black Exhaust w/ Heat Shields - fits '70-'83 Shovelhead without Floorboards (Does not fit Kickstart) This Thunderheader black exhaust system is built for riders who want real...$1,309.00 -
Thunderheader - Chrome Exhaust w/ Heatshields - fits '70-'83 Shovelhead without Floorboards (Does not fit Kickstart)
Thunderheader
$1,473.00Thunderheader - Chrome Exhaust w/ Heatshields - fits '70-'83 Shovelhead without Floorboards (Does not fit Kickstart) This Thunderheader chrome exhaust system is built for Shovelhead riders who want...$1,473.00 -
Thunderheader - Black EVO Style with Center Controls fits '86-'03 Sportster Models
Thunderheader
$999.00Thunderheader - Black EVO Style with Center Controls fits '86-'03 Sportster Models Designed specifically for 1986 to 2003 Harley-Davidson Sportster models, this Thunderheader exhaust features 1-3/4"...$999.00 -
Thunderheader - Chrome EVO Style with Center Controls fits '86-'03 Sportster Models
Thunderheader
$1,079.00Thunderheader - Chrome EVO Style with Center Controls fits '86-'03 Sportster Models Designed specifically for 1986 to 2003 Harley-Davidson Sportster models, this Thunderheader exhaust features 1-3/4"...$1,079.00 -
Thunderheader - Black Forward or Center Controls O2 Sensor Ports fits '04-'06 Sportster Models
Thunderheader
$999.00 - $1,373.00Thunderheader - Black Forward or Center Controls O2 Sensor Ports fits '04-'06 Sportster Models Designed specifically for 2004 to 2006 Harley-Davidson Sportster models, this Thunderheader exhaust...$999.00 - $1,373.00 -
Thunderheader - Black Exhaust - fits '07-'13 Sportster Models w/ Forward or Center Controls
Thunderheader
$1,019.00 - $1,393.00Thunderheader - Black Exhaust - fits '07-'13 Sportster Models w/ Forward or Center Controls Designed specifically for 2007 to 2013 Harley-Davidson Sportster models, this Thunderheader exhaust...$1,019.00 - $1,393.00 -
Thunderheader - Black Exhaust System with 12mm O2 Sensors for 2014 to 2021 Sportster Models
Thunderheader
$1,019.00 - $1,393.00Thunderheader - Black Exhaust System with 12mm O2 Sensors for 2014 to 2021 Sportster Models Designed specifically for 2014 to 2021 Harley Sportster models, this Thunderheader exhaust features 1-3/4"...$1,019.00 - $1,393.00 -
Thunderheader - Chrome Exhaust - fits '04-'06 Sportster Models w/ Forward or Center Controls
Thunderheader
$1,079.00 - $1,453.00Thunderheader - Chrome Exhaust - fits '04-'06 Sportster Models w/ Forward or Center Controls Designed specifically for 2004 to 2006 Harley-Davidson Sportster models, this Thunderheader exhaust...$1,079.00 - $1,453.00 -
Thunderheader - Chrome Exhaust - fits '07-'13 Sportster Models w/ Forward or Center Controls
Thunderheader
$1,109.00 - $1,483.00Thunderheader - Chrome Exhaust - fits '07-'13 Sportster Models w/ Forward or Center Controls Designed specifically for 2007 to 2013 Harley-Davidson Sportster models, this Thunderheader exhaust...$1,109.00 - $1,483.00 -
Thunderheader - Chrome Exhaust System with 12mm O2 Sensors for 2014 to 2021 Sportster Models
Thunderheader
$1,109.00 - $1,483.00Thunderheader - Chrome Exhaust System with 12mm O2 Sensors for 2014 to 2021 Sportster Models Designed specifically for 2014 to 2021 Harley Sportster models, this Thunderheader exhaust features 1-3/4"...$1,109.00 - $1,483.00 -
Thunderheader - Chrome X-Series Standard Exhaust w/Heat Shields fits 2025 Low Rider ST & Heritage Models
Thunderheader
$1,899.00Thunderheader - Chrome X-Series Standard Exhaust w/Heat Shields fits 2025 Low Rider ST & Heritage Models Our X-SERIES™ Exhaust is our newest line in creating maximum horsepower. With our...$1,899.00 -
Thunderheader - Black X-Series Standard Exhaust w/Heat Shields fits 2025 Low Rider ST & Heritage Models
Thunderheader
$1,839.00Thunderheader - Black X-Series Standard Exhaust w/Heat Shields fits 2025 Low Rider ST & Heritage Models Our X-SERIES™ Exhaust is our newest line in creating maximum horsepower. With our...$1,839.00 -
Thunderheader - Black Exhaust w/Center Controls fits '87–'00 FXR Models
Thunderheader
$999.00Thunderheader - Black Exhaust w/Center Controls fits '87–'00 FXR Models This system is built specifically for 1987–2000 FXR models and features 1-3/4 inch head pipes flowing into...$999.00 -
Thunderheader - Chrome Exhaust w/Center Controls fits '87–'00 FXR Models
Thunderheader
$1,079.00Thunderheader - Chrome Exhaust w/Center Controls fits '87–'00 FXR Models This system is built specifically for 1987–2000 FXR models and features 1-3/4 inch head pipes flowing into...$1,079.00 -
Thunderheader - Black 2-Into-1 X-Series Exhaust w/Heat Sheilds fits '17–'25 FLH Touring Models
Thunderheader
$1,839.00Thunderheader - Black 2-Into-1 X-Series Exhaust w/Heat Sheilds fits '17–'25 FLH Touring Models Our Thunderheader™ X-SERIES™ Exhaust is our newest line in creating maximum horsepower...$1,839.00 -
Thunderheader - Chrome 2-Into-1 X-Series Exhaust w/Heat Sheilds fits '17–'25 FLH Touring Models
Thunderheader
$1,899.00Thunderheader - Chrome 2-Into-1 X-Series Exhaust w/Heat Sheilds fits '17–'25 FLH Touring Models Our Thunderheader™ X-SERIES™ Exhaust is our newest line in creating maximum...$1,899.00 -
Thunderheader - Black X-Series Standard Exhaust Pipe w/Heat Shields fits '18–'25 Softail Slim, Lowrider S, Street Bob, Fat Bob, Deluxe & Standard Models
Thunderheader
$1,839.00Thunderheader - Black X-Series Standard Exhaust Pipe w/Heat Shields fits '18–'25 Softail Slim, Lowrider S, Street Bob, Fat Bob, Deluxe & Standard Models THunderheader's X-SERIES™...$1,839.00 -
Thunderheader - Chrome X-Series Standard Pipe w/Heat Shields fits '18–'24 fits Low Rider ST, Heritage, & Sport Glide Models
Thunderheader
$1,899.00Thunderheader - Chrome X-Series Standard Pipe w/Heat Shields fits '18–'24 fits Low Rider ST, Heritage, & Sport Glide Models Our X-SERIES™ Exhaust is our newest line in creating...$1,899.00 -
Thunderheader - Chrome X-Series Standard Exhaust Pipe w/Heat Shields fits '18–'25 Softail Slim, Lowrider S, Street Bob, Fat Bob, Deluxe & Standard Models
Thunderheader
$1,899.00Thunderheader - Chrome X-Series Standard Exhaust Pipe w/Heat Shields fits '18–'25 Softail Slim, Lowrider S, Street Bob, Fat Bob, Deluxe & Standard Models THunderheader's X-SERIES Exhaust is...$1,899.00 -
Thunderheader - Black X-Series Standard Exhaust w/Heat Shields fits '18-'24 Low Rider ST, Heritage & Sport Glide Models
Thunderheader
$1,839.00Thunderheader - Black X-Series Standard Exhaust w/Heat Shields fits '18-'24 Low Rider ST, Heritage & Sport Glide Models Our X-SERIES™ Exhaust is our newest line in creating maximum...$1,839.00 -
Thunderheader - Black Heat Shield Set (3) fits Thunderheader® Exhaust Systems (See Desc.)
Thunderheader
$299.95Thunderheader - Black Heat Shield Set (3) fits Thunderheader® Exhaust Systems Thunderheader Heat Shield sets are sold separately from the exhaust system. Designed to work with the following...$299.95 -
Thunderheader - Chrome Heat Shield Set (3) fits Thunderheader® Exhaust Systems (See Desc.)
Thunderheader
$399.95Thunderheader - Chrome Heat Shield Set (3) fits Thunderheader® Exhaust Systems Thunderheader Heat Shield sets are sold separately from the exhaust system. Designed to work with the following...$399.95 -
Thunderheader - Black 2-Into-1 Exhaust System fits '06-'17 Dyna Models W/ Mid & Forward Controls (18mm & 12mm O2 Sensor Ports)
Thunderheader
$1,099.95Thunderheader - Black 2-Into-1 Exhaust System fits '06-'17 Dyna Models W/ Mid & Forward Controls (18mm & 12mm O2 Sensor Ports) The Thunderheader 2 into 1 exhaust system features a patented...$1,099.95 -
Thunderheader - Black 2-Into-1 Exhaust System fits '99-'05 Dyna Models W/ Mid & Forward Controls (No O2 Ports)
Thunderheader
$1,034.95Thunderheader - Black 2-Into-1 Exhaust System fits '99-'05 Dyna Models W/ Mid & Forward Controls (No O2 Ports) The Thunderheader 2 into 1 exhaust system features a patented collector design that...$1,034.95 -
Thunderheader - Black 2-Into-1 Exhaust System fits '93-'98 Dyna Models W/ Mid & Forward Controls
Thunderheader
$976.00Thunderheader - Black 2-Into-1 Exhaust System fits '93-'98 Dyna Models W/ Mid & Forward Controls The Thunderheader 2 into 1 exhaust system features a patented collector design that allows spent...$976.00 -
Thunderheader - Chrome 2-Into-1 Exhaust System fits '06-'17 Dyna Models W/ Mid & Forward Controls (18mm & 12mm O2 Sensor Ports)
Thunderheader
$1,109.00Thunderheader - Chrome 2-Into-1 Exhaust System fits '06-'17 Dyna Models W/ Mid & Forward Controls (18mm & 12mm O2 Sensor Ports) The Thunderheader 2 into 1 exhaust system features a patented...$1,109.00 -
Thunderheader - Chrome 2-Into-1 Exhaust System fits '99-'05 Dyna Models W/ Mid & Forward Controls (No O2 Ports)
Thunderheader
$1,079.00Thunderheader - Chrome 2-Into-1 Exhaust System fits '99-'05 Dyna Models W/ Mid & Forward Controls (No O2 Ports) The Thunderheader 2 into 1 exhaust system features a patented collector design that...$1,079.00
Thunderheader Performance Exhaust Systems – Motorcycle 2-Into-1 Headers, X-Series Pipes & Harley-Davidson Exhaust Upgrades
Thunderheader is a performance-focused motorcycle exhaust brand recognized for its high-flow 2-into-1 exhaust systems, X-Series headers and model-specific exhaust upgrades designed for Harley-Davidson motorcycles. The brand is strongly associated with high-search keywords such as Harley 2 into 1 exhaust system, Softail performance exhaust, Dyna exhaust upgrade and motorcycle header system, making it a popular choice among riders seeking improved torque, throttle response and aggressive exhaust tone.
The product lineup includes full 2-into-1 exhaust systems and slip-on solutions for multiple Harley platforms, including Softail, Dyna, Sportster, FXR and Touring models. Products such as the X-Series High Pipe Exhaust, Thunder Cones Slip-On Systems and heat-shielded exhaust configurations are engineered to improve exhaust flow efficiency while delivering a deep, aggressive sound profile. These systems are commonly searched under terms like Harley exhaust upgrade kit, performance motorcycle pipes and custom Harley exhaust system.
Thunderheader systems are designed for riders who want a balance of performance gains and durability, with applications across both older and modern Harley engines. The brand’s exhausts are widely used in custom builds and performance upgrades, offering strong mid-range torque and improved engine breathing. Popular search intent includes Harley performance exhaust system, motorcycle 2-into-1 headers and X-Series Harley exhaust upgrade, making Thunderheader a preferred solution for serious V-twin performance enthusiasts.