Cobb 02-07 WRX/STi Catback Exhaust

The COBB Cat-Back Exhaust for the 2002–2007 Subaru WRX and STI is designed to deliver a balance of refined sound, increased performance, and high-quality construction. Built entirely from 304 stainless steel, this exhaust system provides long-term durability and resistance to corrosion, making it a perfect choice for daily driving or spirited use.

Featuring 3-inch mandrel-bent tubing, the system ensures maximum exhaust flow, reducing restrictions and supporting both stock and modified turbo setups. A custom-designed straight-through muffler delivers a deep, aggressive tone under throttle while maintaining a comfortable volume during cruising.

Installation is straightforward thanks to precision-engineered flanges, multi-layer gaskets, and a direct bolt-on design that mates seamlessly to the factory downpipe or COBB aftermarket options. Finishing off the look are dual polished stainless steel tips etched with the COBB logo, adding a clean and performance-inspired appearance to the rear of your Subaru.

Whether you’re looking to enhance the sound, improve performance, or simply upgrade from a tired OEM system, the COBB Cat-Back Exhaust is a proven choice for WRX and STI enthusiasts.