Grimmspeed Black Lightweight Crank Pulley WRX 2015-2021 / BRZ 2013-2018 / FR-S 2013-2016| 095023 SkylineR34_1999-2002 Torque Solution Drive Shaft Center

Torque Solution Drive Shaft Center Support Bushings will replace the OEM Rubber mounts with billet aluminum pieces

load conditions

-Knob Height - 1" higher to 1" lower -Throw - 10% longer to 25% shorter after cutting the trim ring

ARP Rod Bolts for the Mitsubishi 4G63 are made of premium grade 8740 chrome moly steel and heat treated to a nominal tensile strength of 190

Grimmspeed Black Lightweight Crank Pulley WRX 2015-2021 / BRZ 2013-2018 / FR-S 2013-2016| 095023 SkylineR34_1999-2002 Torque Solution Drive Shaft CenterYour factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a c compressor and alternator. It does this by way of a rubber belt and it does it's job well. The drawback to the factory pulley is that it's quite heavy. Reasons for this include less expensive manufacturing and using the pulley's mass to smooth out 'noise' in the accessory system (NOT to be confused with functioning as a harmonic dampener,