Grimmspeed Crank Pulley Red WRX (2002-2014) STI (2004-2018) Mazda this will seperate the exhaust

this will seperate the exhaust gas exiting the downpipe

eliminating all driveline slop and that annoying thud from first to second gear

the StopTech Performance pads will out perform most other OEM quality pads on the street or track

more precise shifts

Grimmspeed Crank Pulley Red WRX (2002-2014) STI (2004-2018) Mazda this will seperate the exhaustThe 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