Invidia N1 Catback Exhaust system for 2008-2013 Subaru WRX / STI 4DR. Upgrading your exhaust will create better efficiency and performance. Stock exhaust systems are often small in diameter and press-bent, which causes a restrictive flow of exhaust gases. This restrictive flow of exhaust gases causes back pressure and robs your engine of horsepower and torque. By increasing the diameter of your exhaust pipes and eliminating gas flow restraints, your engine will run much more efficiently and create more horsepower and torque.
High quality and durable parts have made Invidia products well sought after by performance enthusiasts. The Invidia N1 series cat-back exhaust system is made from high quality SUS304 stainless steel with proper fitment ensured.
Available for 2008-2013 Subaru WRX / STI 4DR.
Pipe size: 76mm; Tip size: 110mm .
Installation Notes:
Invidia part# HS11STIGTP
Package includes complete exhaust system, necessary hardware, installation instructions, warranty information & decals.