SuSubaru OEM Small Idler Pulley WRX 03-14 / STI 04-21 | 13073AA230 Wheel Bolt Pattern_5x108 Also a must in any

Also a must in any competition car due to regulations concerning oil on the track

These egulators are direct bolt-on for engines with the factory fuel rail or aftermarket fuel rails designed with mounting provisions for the stock regulator

Programmable low fuel pressure warning for engine protection

* Modification of the intake camshaft and intake camshaft seal required

this is exactly what you need

SuSubaru OEM Small Idler Pulley WRX 03-14 / STI 04-21 | 13073AA230 Wheel Bolt Pattern_5x108 Also a must in anyProduct Fitment: 2003 2014 WRX 2004 2021 STI 13073AA230 IDLER Complete Belt is Part Code 13073*C 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.