Exhaust Manifolds

Eliminate the costly exhaust manifold cracks prevalent in the factory exhaust manifold. The aFe Bladerunner exhaust manifold for the popular 5.9L...

One-Piece Construction:This manifold is constructed of durable cast ductile iron with a reinforcing rib for maximum strength between the wall flang...

This manifold is constructed of durable cast ductile iron with a reinforcing rib for maximum strength between the wall flanges at the ports. Dual A...

The aFe BladeRunner Ported Ductile Iron Exhaust Manifold for the popular 94-98 5.9L Dodge Ram Cummins (12V) sets a new standard. This exhaust manif...

One-Piece Construction:This manifold is constructed of durable cast ductile iron with a reinforcing rib for maximum strength between the wall flang...

Machined Ports:These manifolds have both the inlet and the outlet ports machined to match the factory ports. This allows for maximum flow, without ...

Bolt on diesel power with aFe’s BladeRunner exhaust manifolds for your 08-10 6.4L Powerstroke. These ported ductile iron manifolds will reduce pres...

Machined Ports:These manifolds have both the inlet and the outlet ports machined to match the factory ports. This allows for maximum flow, without ...

Stainless Steel Construction:This system is constructed from durable mandrel-bent stainless steel tubing for maximum performance, corrosion resista...

1-5/8" - 2-1/2" 409 Stainless Steel Construction:This direct fit catalytic converter replacement is constructed of 1-5/8" - 2-1/2" mandrel-bent 409...

This MACH Force-Xp series cat-back front muffler assembly provides a perfect solution for performance and exhaust tone. This MACH Force-Xp exhaust ...

Stainless Steel Construction:Mandrel bent 1-3/4" 304 stainless steel tubing improves exhaust flow for noticeable torque and horsepower gains. Opt...

aFe's Twisted Steel headers outflow and outperform the Ford diesel factory exhaust manifolds for a true, bolt-on performance header system. These p...

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...

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...

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...

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...

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 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 Long Tube Header w/ Cat & Connection Pipe combo replaces the extremely restrictive exhaust manifold. Constructed out of...

Factory Mounting Locations:A direct bolt-on system which requires no cutting or drilling to provide a hassle-free installation. Formed Collectors:4...

Factory Mounting Locations:A direct bolt-on installation which requires no cutting or drilling to provide a hassle-free installation. Formed Collec...

Dual High Flow Catalytic Converters:Semi-metallic 400 CPSI catalytic converters are used for maximum flow. True Merge Collectors:Eliminates dea...

Header FeaturesHigh Flow Catalytic Converters:Each header comes with 200 CPSI (cell per square inch) metallic high-flow catalytic converters for ma...

Header FeaturesMitered Collectors:3-to-1 mitered collectors decrease turbulence and increase exhaust velocity. The result is increased horsepower, ...

aFe POWER Twisted Steel headers for the 2012-2016 Porsche 911 Carrera S (991) with the H6-3.8L engine. These headers are 100% TIG-welded and cons...

aFe POWER Twisted Steel headers for the 2013-2016 Porsche Boxster S/2014-2016 Cayman S (981) with the H6-3.4L engine produced a max gain of +22 H...

aFe POWER's new "Race Only" Twisted Steel Headers deliver an astounding 9 HP and 12 lbs. x ft. TQ, while out flowing the factory exhaust manifolds....

Retains Factory Sensors Mounting Locations:Retains factory sensor locations for a hassle free installation. These headers also include 400 cell cat...

Construction:These unique up pipes are constructed of 2" mandrel-bent 304 stainless steel tubing with a .120" wall for strength and durability. 2" ...

Construction:These unique up pipes are constructed of 2" mandrel-bent 304 stainless steel tubing with a .120" wall for strength and durability. 2" ...

Tri-Y Design:Paired opposite firing cylinders with equal, specifically tuned primary lengths maximizes scavenging and increases torque throughout...