Subaru Stainless Steel Cat-Back Exhaust WRX 2015-2021 Sedan

The COBB Stainless Steel Cat-Back Exhaust is a direct bolt on for the 2011-2021 GV and VA Subaru WRX/STI Sedan. 

Construction 

The entire system is constructed of 304 stainless steel and is meticulously TIG welded for outstanding appearance and durability. 

Mid-pipe 

At the front, a high-quality cast flange is machined to accept the factory donut gasket for leak-free installation. From there, 3" stainless steel tubing runs all of the way back to another 3" cast flange where it meets the y-pipe. A flex section in this pipe adds compliance to the system. 

Y-pipe 

The y-pipe in this exhaust system consists of a 3" tube that is divided into twin 2.5" tubes by way of an all-new cast split section. This cast section improves durability and longevity when compared to other welded splits. All three connections of the y-pipe section are made with high quality cast flanges which resist distortion and allow for leak-free installation.

Mufflers

As with the rest of the system, the muffler sections connect to the y-pipe section using high quality cast flanges. At the heart of this exhaust system are two all new bespoke COBB designed mufflers. These new muffler sections feature a single 2.5" inlet and dual 2.5" outlets that accept slip-on 3.5" dual wall, slash cut tips with laser etched COBB logos. 

Gaskets 

Multi-layer steel (MLS) gaskets are included for all connections to ensure a secure, leak-free installation. 

All of these features add up to a premier cat-back exhaust for your VB Subaru WRX. The exhaust note is crisp and noticeable over stock without introducing unwanted drone in cabin. 

Emissions 

This part is not an emissions-related part and therefore can be used in Emission Controlled Vehicles.