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.
Fits Si Sedan Only
Direct fit for 2017-2018 Honda Civic Si L4-1.5L Turbo
Fits SEDAN models ONLY
Center exit design fits with factory rear valance
Dyno Proven gains of up to 11 hp and 10 lb/ft of torque
Dual 4.0" Titanium Tips
Stainless Steel Investment Cast Flanges For a Fast and Easy Install
Hand Crafted and Tig Welded to Perfection for Strength and Durability
304 SS Mandrel-Bent Tubing
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.