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ME3-HDSS kit features ACT's most popular Heavy Duty pressure plate and most popular street disc
3D transition head flange
largest gains recorded: 39 horsepower at 5
The high flow catalytic converter and mufflers offer optimal performance gains
Cobb Stainless Steel Cat-Back Exhaust Subaru WRX (02-07) STi (04-07) blouch ME3-HDSS kit features ACT's mostThe 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. The COBB Tuning catback exhaust is heralded often for its
