Borla Cat Back Exhaust 2011-2014 WRX / 2008-2014 Subaru STI Hatchback Vehicle Model_TC This is because the power

This is because the power required to accelerate a heavy pulley accounts for a much greater proportion of the available power at low RPM

Longevity: 50k Miles

They offer approximately a 1

The exhaust is constructed of 4 inch diameter

tuned and dyno-tested to fit specific Nissan 350Z models

Borla Cat Back Exhaust 2011-2014 WRX / 2008-2014 Subaru STI Hatchback Vehicle Model_TC This is because the powerPart #: 140312 Borla Catback Exhaust for the Subaru WRX and STI is a full stainless steel exhaust system that uses slip fittings for easy install and removal. The piping tapers to 2. 5in right before connecting to the downpipe for great fitment using stock or aftermarket downpipes. This system does not have any resonators and will be fairly loud, but not overly noisy and annoying. It will however net you some serious gains through out the power band