Subaru OEM Knuckle - Front Left 08-21 STI | 28313FG011 Q50_2014-2020 many newer vehicles use pulse-width-modulation

many newer vehicles use pulse-width-modulation (PWM) to drive headlights

This Dual AVCS Cam Bolt Kit has been designed to replace the stock 10mm allen head DOHC cam gear bolts with more robust 17mm Hex Head Bolts

#SB2004-U-CBRC

there is a Perrin spacer included which allows for easier installation of the thermostat-filter assembly and increased clearance for the hoses over the headers

custom-engineered TIR optics

Subaru OEM Knuckle - Front Left 08-21 STI | 28313FG011 Q50_2014-2020 many newer vehicles use pulse-width-modulationProduct Fitment: 2008 2021 Subaru STI 28313FG011 Front Spindle Knuckle, Left is Part Code 28313A in the diagram below 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.