Grimmspeed Crank Pulley Blue WRX (2002-2014) STI (2004-2018) Hyundai All ISC Suspension products are

All ISC Suspension products are made in-house at the ISC's New Hampshire location and also hand assembled

These lug nuts should be used with aftermarket wheels only

For those of you that demand the maximum in power output and weight reduction

Torque Solution Differential Bushings for the Mitsubishi Evolution X are made with both quality and performance in mind

- Spare wideband oxygen sensor bung included

Grimmspeed Crank Pulley Blue WRX (2002-2014) STI (2004-2018) Hyundai All ISC Suspension products areThe OEM Subaru crank pulley has been a cause for concern ever since its original design. It is extremely heavy, susceptible to catastrophic failure, and quite unsightly. Eliminating rotational mass while maintaining a safe presence can increase reliability and bring faster Rev's! GrimmSpeed really pulled out all of the stops for this Lightweight Crank Pulley. CNC machined from 6061 T6 Aluminum this pulley makes no compromise. It weighs in 3. 5lbs