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Cobb SS Cat-Back Exhaust – 02-07 WRX / 04-07 STI

Cobb SS Cat-Back Exhaust – 02-07 WRX / 04-07 STI


The COBB Tuning catback exhaust is heralded often for its quality, performance, and subtlety. Engineered to be a vehicle specific unit, the catback exhaust uses the highest quality stainless steel piping and a muffler designed for direct and efficient flow of exhaust to achieve the highest performance while still retaining a stock like appearance and sound level.

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The COBB catback exhaust for the WRX & STI does not deviate from the factory emissions equipment and conforms to the SAE dictated 95-decibel exhaust noise level limit enforced by California, as well as other states in the US. This system is modeled after the stock factory exhaust fitment locations, therefore making it an easy direct bolt on item inclusive of all needed gaskets and hardware.


Subaru WRX / STI SS 3″ Cat-Back Exhaust

  • Straight-through Optimum Flow Design
  • 304 Stainless Steel for Corrosion Resistance
  • TIG Welded
  • Impressive Sound
  • Complies with SAE 95db Requirements


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


Additional Information

Weight 38.6 lbs
Dimensions 51.9 × 18.4 × 8.8 in


  • 2002-2007 WRX
  • 2004-2007 STI

Installation Guide

Install Guide