Cobb Tuning Subaru 02-07 WRX / STI SS 3" Cat-Back Exhaust - 512100 89mm 1/8th NPT port for fuel

1/8th NPT port for fuel pressure regulator

NS5-HDG4 kit features ACT's most popular Heavy Duty pressure plate

but in a common 52mm size for easy mounting

IP65-rated enclosure is dust-tight and water-resistant

Made in the USA - Manufactured right here in Minnesota

Cobb Tuning Subaru 02-07 WRX / STI SS 3" Cat-Back Exhaust - 512100 89mm 1/8th NPT port for fuelEMISSIONS This part is not an emissions related part and therefore can be used on Emission Controlled Vehicles. DESCRIPTION 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