AFE 1-5/8 x 2-1/2-Inch Twisted Steel Long Tube Header (15-21 WRX STI)Find parts that fit my vehicle

Constructed from 1-5/8" - 2-1/2" Mandrel-Bent Brushed Finished 304 Stainless Steel Tubing
Optimized Tube Lengths for Improve Flow and Performance
Laser Cut Flanges are used for a Durable Leak-Free Seal
100% TIG-Welded for Strength and Durability
Works with Factory Exhaust System with No Modifications Necessary

1-5/8" - 2-1/2" 304 Stainless Steel Construction:
This system is constructed of 1-5/8" - 2-1/2" mandrel-bent brushed finished 304 stainless steel tubing for maximum strength and durability.

Unequal Tube Lengths:
This header features Unequal Tube lengths to accentuate the iconic Boxer Rumble.

Laser Cut Flanges:
Factory style laser cut steel flanges are used for a secure, leak-free seal.

Installation:
Utilizing factory style flanges this system is designed to fit in the stock locations with no cutting or modifications required for a hassle-free installation.

Formed Collector:
Formed collectors decrease turbulence and increase exhaust velocity. The result is increased horsepower, torque and improved throttle response.

TIG-Welded:
100% TIG-welded for race proven strength and durability.

aFe POWER headers are engineered and manufactured in our Corona, California facility.

Emissions Disclaimer
This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov