Subaru OEM Differential Temperature Sensor 15-21 STI | 22630AA260 vendor_APR Since the factory setup uses

Since the factory setup uses only one white chip

you can take significant weight off of the rotating assembly which will allow it to rev more freely

Part #: 05952AHD

Adjustable angle with lock-nut for secure positioning

Part #: FH02SD1

Subaru OEM Differential Temperature Sensor 15-21 STI | 22630AA260 vendor_APR Since the factory setup usesProduct Fitment: 2015 2021 Subaru STI 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.