Subaru OEM Center Differential Subaru STI 2008-2017 | 38913AA210 50 the GrimmSpeed Crank Pulley quantitatively

the GrimmSpeed Crank Pulley quantitatively improved throttle response

Wiring harness(Gauge to O2 sensor) Plug and play

✅ Designed & CNC-Machined In-House for Precision & Quality

we highly suggest slotted rotor

this kit provides the adjustability and reliability needed for consistent results

Subaru OEM Center Differential Subaru STI 2008-2017 | 38913AA210 50 the GrimmSpeed Crank Pulley quantitativelyProduct Fitment: 2008 2017 Subaru STI 38913AA210 Center Differential Assembly is Part Code 38913 in the diagram Warranty Disclaimer: Subaru of America will only warranty parts installed by a CERTIFIED Subaru Dealership. The part being installed must also match the vehicle VIN. IE If you install an STi block in a WRX at your friends shop, do not expect a warranty claim to come through if it explodes! Please use your best judgement.