Perrin Lightweight Crank Pulley Black WRX (2002-2014) STI (2004-2018) Mazda In modified Subarus

In modified Subarus

There's more than one way to protect your shifter housing

each wheel is pressurized from an industry leading 12

The intake provides gains in horsepower and torque across the entire rev range

urethane bushings

Perrin Lightweight Crank Pulley Black WRX (2002-2014) STI (2004-2018) Mazda In modified SubarusPerrin'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