GESI Catted J-Pipe

The Extreme Turbo Systems (ETS) GESI Catted J-Pipe is engineered as a direct upgrade for the 2015-2021 Subaru WRX, replacing the restrictive factory downpipe. Constructed from durable 304 stainless steel, it features 3-inch diameter piping with precise CNC mandrel bends to ensure a smooth, unimpeded path for exhaust gases. This design significantly reduces backpressure, leading to noticeable gains in horsepower and torque while also minimizing turbo lag. This J-pipe includes an integrated Gen 2 400 Cell GESI catalytic converter, designed to support up to 850 wheel horsepower while maintaining emissions compliance in many areas. The high-flow catalytic converter helps produce a more aggressive, throaty exhaust note. Its construction from 304 stainless steel flanges further enhances durability and corrosion resistance. This component is an excellent performance enhancement for a variety of applications, from daily drivers and weekend show cars to dedicated race or rally vehicles. **Important Notes:** This J-pipe may not be compatible with CVT transmission models. It is NOT CARB legal and cannot be shipped to California.