The Injen Technology engineers are experts when it comes to performance, PERIOD. From Cars to Trucks to Powersports, Injen has a variety of exhaust systems to choose from. All of Injen Technology Performance exhaust systems are constructed from mandrel bent stainless steel tubing Mandrel-bending ensures the tubing maintains its shapes and size throughout the entire length, providing smooth, unrestricted airflow. From the Investment cast flanges to the custom hangers, all Injen exhaust systems are 100% TIG welded and handcrafted in the USA and include all tubing, mufflers, and hardware necessary for a hassle free installation. Each system is uniquely designed to offer an aggressive sound that brings out some massive power. Like all other Injen products, the Injen exhaust systems are proudly built in Pomona, CA.
5 Door models ONLY
Direct fit for the
2008-2013 Subaru Sti L4-2.5L Turbo
2011-2013 Subaru WRX L4-2.5L Turbo
Fits 5 Door Models ONLY
Dyno Proven gains of up to 18 hp and 19 lb-ft. of torque
Stainless Steel Investment Cast Flanges For a Fast and Easy Install
Hand Crafted and Tig Welded to Perfection for Strength and Durability
Unique Design Increases Exhaust Velocity (Depending on the Application)
304 SS Mandrel-Bent Tubing
Show Quality Embossed Stainless Steel Muffler (Depending on the Application)
Premium Stainless Steel Hardware and Hangers (Depending on the Application)
Designed and Made in Pomona, CA
Prop 65 Compliance
This product can expose you to chemicals including Chromium, Nickel & Cobalt, which are known to the State of California to cause cancer.