Cobb Tuning Subaru 02-07 WRX / STI SS 3" Cat-Back Exhaust - 512100 89mm Made in the USA -

Made in the USA - Manufactured right here in Minnesota

This is a core-only option for those looking to increase the cooling capacity of their 2011-2014 WRX or STI in situations where piping already exists or needs to be custom-routed

1/8th NPT port for fuel pressure regulator

8% HP / +18

but in a common 52mm size for easy mounting

Cobb Tuning Subaru 02-07 WRX / STI SS 3" Cat-Back Exhaust - 512100 89mm Made in the USA -EMISSIONS 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