Perrin Lightweight Crank Pulley Black WRX (2002-2014) STI (2004-2018) Mazda TurboXS downpipe with high flow

TurboXS downpipe with high flow catalytic converter for the Subaru WRX and STI uses a massive cast 304 Stainless Steel Bellmouth that tapers to 3

they also include precise control dump valves

The PERRIN Performance boost controller cover for the Subaru STI is constructed of 5052 plate aluminum with precision bends and mounting holes to fit perfect under your hood

This ACT Heavy Duty Performance Street Disc Clutch Kit w/ Flywheel for the Subaru features ACT's heavy duty pressure plate that features an exclusive diaphragm design to increase the clamp load

Photo may vary from actual product

Perrin Lightweight Crank Pulley Black WRX (2002-2014) STI (2004-2018) Mazda TurboXS downpipe with high flowPerrin's lightened crank pulley for the Subaru WRX STI LGT is engineered to reduce rotating mass, increasing horsepower and torque. Made from 6061T6 aluminum and weighing 1. 2lbs, Perrin crank pulley is more then 4lbs lighter then the stock crank pulley. Perrin's pulley is not underdriven and will not affect the life of your engine. The pulley is simply a redesigned, lighter version of the stock crank pulley. Aftermarket underdrive pulleys are prone