In stock / Special Order Sale

Performance Gains:This system produced gains of up to +24 HP and +17 lbs. x Ft. TQ., as measured on our in-house dyno. 1-7/8" - 2-1/8" - 2-3/4” 3...

The aFe POWER Twisted Steel Jeep "y-pipe" is designed to connect the stock catalytic converter with either the stock exhaust or aFe POWER's MACH Fo...

The aFe POWER Twisted Steel Y-Pipe is engineered to replace the stock y-pipe to accommodate long arm travel lift kits. This product is constructed ...

The aFe Scorpion Loop Delete/Y-Pipe combo package is engineered to replace the stock loop section and y-pipe to accommodate long arm travel lift ki...

TIG Welded:100% TIG welded by certified craftsmen for race proven strength and durability. TIG welding provides the strongest welds reducing stre...

Upgrade your M3 exhaust with the Twisted Steel 2-1/2" X-Pipe from aFe POWER. Mandrel-bent from 304 stainless steel tubing for maximum exhaust flo...

This Twisted Steel Loop Delete Down Pipe replaces the factory loop section on the Jeep JL exhaust after the catalytic converter to accommodate most...

The aFe Power Twisted Steel Loop Delete Down Pipe is designed to eliminate the stock loop section after the catalytic converter and create the requ...

This Twisted Steel Y-pipe for your JL replaces the restrictive factory Y-pipe between the catalytic converter and stock exhaust system or aFe's Mac...

aFe POWER introduces an all new Twisted Steel catted Y-pipe for the Ford F-150 EcoBoost with V6-3.5L engine. This torque monster Y-pipe is construc...

Unleash torque and horsepower with this Twisted Steel series header for your 24 valve Cummins. 1-3/4" head pipes stepped to 2" mandrel bent 304 sta...

1-3/4" to 2" x .120 Wall Stainless Steel:A 1-3/4" head pipe stepped to 2" x .120 wall stainless steel tubing, is used to increase exhaust velocity ...

Performance Gains:In-house dyno testing produced gains of up to +14 HP and +16 lbs. x ft. torque. 1-5/8" 304 Stainless Steel Tubing:Mandrel-bent, 1...

Performance Gains:This system produced gains of up to +18 HP and +25 lbs. x Ft. TQ., as measured on our in-house dyno. 1-7/8" 304 Stainless Steel...

Testing:In recent testing the “Street” version produced +24 horsepower and +27 lbs. x ft. of torque on our in house dyno. (Tested on a 2005 Nissa...

aFe POWER's Twisted Steel long tube header and connection pipe deliver +24 HP and +27 lbs. x ft. torque over the factory. This system is construc...

Stainless Steel Construction:The headers are constructed out of heavy duty gauge, mandrel-bent 304 stainless steel tubing with a .120" wall for s...

Unleash more torque and horsepower from your Dodge or Chrysler 5.7L with this Twisted Steel series header. Made with 16-gauge 1-3/4" mandrel bent 3...

Unleash more torque and horsepower with this Twisted Steel Header for your RAM 1500 HEMI. Optimized, 1-5/8" mandrel bent, 304 stainless-steel tubin...

Factory Mounting Locations:These headers are a direct bolt-on installation which requires no cutting or drilling to provide a hassle-free install...

The aFe POWER Twisted Steel Y-pipe is designed to connect the OE exhaust or to aFe POWER's MACH Force-Xp exhaust system. Designed also to accommoda...

Factory Mounting Locations:These headers are a direct bolt-on installation which requires no cutting or drilling to provide a hassle-free installat...

Factory Mounting Locations:These headers retain your stock catalytic converters and are a direct bolt-on installation which requires no cutting or ...

Add more power to your 2011-2014 F150 Coyote with the 5.0L by installing our Twisted Steel headers. These headers feature 1-5/8" mandrel-bent tuned...

Factory Mounting Locations:These headers retain your stock catalytic converters and are a direct bolt-on installation which requires no cutting or ...

Factory Mounting Locations:These headers retain your stock catalytic converters and are a direct bolt-on installation which requires no cutting...

Factory Mounting Locations:These headers retain your stock catalytic converters and are a direct bolt-on installation which requires no cutting or ...

aFe Power's New Twisted Steel Headers deliver +6 HP and +6 lbs. x ft. torque over the factory exhaust manifolds. The headers are constructed of 1-1...

aFe Power's New Twisted Steel Headers deliver +6 HP and +6 lbs. x ft. torque over the factory exhaust manifolds. The headers are constructed of 1-1...

The new Twisted Steel performance header from aFe Power is redefining the header industry with the new pulse control technology. aFe engineers have...

aFe Power's new Twisted Steel header delivers an astounding 7 hp and 9 lbs. x ft. torque while outflowing the factory exhaust manifold. The header ...

aFe POWER's Twisted Steel header delivers an astounding 12hp and 19lbs. x ft. torque while outflowing the factory exhaust manifold. The header is c...

High Flow Catalytic Converter:This down-pipe utilize a high flow catalytic converter for maximum flow. Factory Mounting Locations:The down-pipe mou...

aFe POWER Twisted Steel down-pipe w/ Cat for the Subaru WRX STI 2015-2020 with H4-2.5L engine. This down-pipe is designed using a 400 CPSI cataly...

Testing:In testing, the down-pipes produced a max gain of +27 horsepower and +50 ft. lbs. of torque verified by our in house dyno High-Flow Catalyt...

aFe POWER Twisted Steel down-pipe w/ Cat for the 2012-2015 Honda Civic Si (Coupe/Sedan) with L4-2.4L VTEC engine. This item utilizes a 400 cpsi c...

Performance Gains:This system produced gains of up to +13 HP and +21 lbs. x Ft. TQ., as measured on our in-house dyno. 3" 304 Stainless Steel Con...

aFe POWER Twisted Steel down pipe w/ Cat for the BMW 135i (E82/88) or 335i (E90/92/93) models with L6-3.0L (t) N55 engine. This down pipe is desi...

aFe POWER Twisted Steel down pipes for the BMW M3/M4/M2 Competition (F80/F82/F83/F87) with the L6-3.0L (tt) S55 engine. The down-pipes are 100% TIG...

aFe POWER introduces an all new Twisted Steel "Street" Down-Pipe for the Ford Mustang with the L4-2.3L (t) EcoBoost engine. This down-pipe is desig...

Race Version:This down-pipe was designed as a "Race" version for added performance and a more aggressive sound. Factory Mounting Locations:The do...

High Flow Catalytic Converter:This down-pipe utilizes a 400 CPSI (cell per square inch) catalytic converter for maximum flow. Factory Mounting Lo...

Add power and sound to your Infiniti Q50 or Q60 with this Twisted Steel full cat-delete, race series, down-pipe exhaust system which produced up ...

Performance Gains:This system produced gains of up to +24 HP and +27 lbs. x Ft. TQ., as measured on our in-house dyno. 3" 304 Stainless Steel Con...

aFe POWER introduces an all new Twisted Steel "Street" down-pipe for the Cadillac ATS with I4-2.0L (t) engine. This street version down-pipe is des...

Equal Length Loop DesignUtilizing an equal length single loop design reduces drone and improves low end torque. High Flow Catalytic Converter:These...

Add dyno-proven power to your Ford Focus RS with this Twisted Steel down-pipe which produced up to +10 horsepower and +14 lbs. x ft. torque max gai...

Add power and sound to your Ford Ranger with this Twisted Steel down-pipe. 3" mandrel-bent, 304 stainless steel tubing and high flow, 400 CPSI cata...