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

Durable urethane bushings included making this sway bar ready for the installation

each wheel is pressurized from an industry leading 12

Caster Explained

3" one-piece design with no pre-cat slip joint

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