aFe Power Race Series Twisted Steel DownPipe for 16-19 Civic / SI 1.5L

Details: +14 HP and +27 lbs. x ft. Torque max gains *(Dyno results are from 2017 Honda Civic Coupe EX-T Manual) Race version for added performance and a more aggressive sound Constructed...

aFe Power Race Series Twisted Steel Headers for 12-16 Porsche 911 Carrera S 991

Details: Constructed of 100% TIG-welded, 1-7/8" 16-gauge 304 stainless steel tubing Incorporates 3-to-1 mitered collectors Retains factory sensors Optimized equal tube lengths...

aFe Power Race Series Twisted Steel Y-Pipe 3" to 3-1/2" for 11-14 F150 3.5L

Details: Aluminized Steel Y-Pipe/Downpipe for Durability True 2-Into-1 Mitered Merge Collector Eliminates Dead Zone for Improved Flow Mandrel-Bent 3" Piping Transitions into 3-1/2" Piping...

aFe Power Race Twisted Steel Down-Pipe for 07-10 BMW 335i / 08-10 135i

Details: +17 HP / +32 lbs. x ft. Torque max gains Contructed out of 304 stainless steel tubing for maximum performance and corrosion resistance 100% hand TIG-Welded by certified craftsmen...

aFe Power Race Twisted Steel Down-Pipe for 11-13 BMW 335i / 135i N55

Details: In house testing produced a max gain of +14 horsepower and +39 ft. lbs. of torque verified by our in house dyno A unique 3.5" to 4" stepped design is used to increase exhaust...

aFe Power Race Twisted Steel Down-Pipe for 13-19 Cadillac ATS 2.0L

Dyno-Proven Gains up to +18 HP & +21 Lbs. x Ft. TQ ("Street" Version Tested on 2015 Cadillac ATS L4-2.0L) Race Version for Added Performance and a More Aggressive Sound Additional Bung for...

aFe Power Race Twisted Steel Down-Pipe for 15-18 BMW M3 / M4 S55

Constructed of 3" mandrel-bent, 304 stainless steel tubing Retains Factory O2 Sensor Locations 100% TIG-Welded Thick flanges to ensure a leak-free seal Race-inspired raw power with an...

aFe Power Race Twisted Steel Down-Pipes for 16-19 Infiniti Q50

Details: Up to +16 HP and +23 lbs. x ft. torque (tested with 48-36110-HC) 3" mandrel-bent, brushed finished 304 stainless steel tubing for improved flow, great appearance V-band machined...

aFe Power Race Twisted Steel Down-Pipes for 17-19 F150 Raptor 3.5L

Details: Dyno-Proven Gains up to +14 HP & +14 Lbs. x Ft. TQ Constructed from 3" Mandrel-Bent, 409 Stainless-Steel Tubing Machined Factory Style Flanges are Used for a Secure Leak-Free...

aFe Power Race Twisted Steel Long Tube Header & Connection Pipes for 96-99 M3

Details: 1.625"-2" 16-Gauge 304 Stainless Steel Mandrel-Bent Tubing for Unrestricted Flow 3-to-1 mitered merge collectors eliminate flow blocking turbulence Optimized Tube Lengths Improve...

aFe Power Race Twisted Steel Long Tube Header for 13+ Subaru BRZ / FR-S

Details: In testing, produced a max gain of +10 horsepower and +13 ft. lbs. of torque verified by our in house dyno Constructed of 1-5/8" 16-gauge 304 stainless steel tubing Incorporates...

aFe Power Race Y-Pipe 3" to 3-1/2" Exhaust for 11-18 Ram 1500 5.7L

Aluminized Steel for Durability True 2 Into 1 Mitered Merge Collector Eliminates Dead Zone for Improved Flow Mandrel-bent 3" Piping Transitions into 3.5" Piping For Better Power ...