GrimmSpeed IWG Adjustable Bracket for Subaru (010019) *Discontinued* COBB Custom MAF flanges are machined

Custom MAF flanges are machined from the same 6061 alloy and are placed on the straight nearest the filter

(2) 3/8" Lock washers

• Unconfirmed with Evo 7 or JDM models

Additional heat is also generated by the pumping and pressurizing of fuel

4G63 Evo 4/5/6/7/8/9 Cometic Head Gasket Part Numbers: Gasket

GrimmSpeed IWG Adjustable Bracket for Subaru (010019) *Discontinued* COBB Custom MAF flanges are machined*Discontinued* This part has been discontinued by GrimmSpeed as of 2025. Unfortunately STM has none remaining in stock. The GrimmSpeed IWG internal wastegate bracket can be used in place of the stock wastegate actuator when moving to an external wastegate setup. In previous years, Subaru owners had to weld the IWG shut on their turbos which diminished resale value, had the chance of cracking, and made it very difficult to revert back to the stock IWG