Subaru OEM Differential Pinion Seal - Right - Passenger Side Subaru STI 2004-2021 | 806900150 vendor_SPEC Each IAG header is fully

Each IAG header is fully TIG welded for maximum strength

810 center – 5/16-18 UNF 2

allowing for higher quality and performance

and reliability—making them ideal for turbocharged and race-focused applications

If you are running a different rotated turbo kit you will need to make a custom pipe

Subaru OEM Differential Pinion Seal - Right - Passenger Side Subaru STI 2004-2021 | 806900150 vendor_SPEC Each IAG header is fullyProduct Fitment: 2004 2021 STI 806900150 O Ring 115. 5X1. 9 is Part Code G90015 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.