GrimmSpeed StealthBox Cold Air Intake Red Subaru STI 2015-2021 vendor_Killer B The Forge valve uses full

The Forge valve uses full billet aluminum construction and Viton silicone o-rings that will withstand the highest boost levels and repeated abuse

The new EBC Yellowstuff compound is essentially a race pad but with a BIG difference in that it works from cold and can be safely used on the highway

Which means

Great upgrade whether it is used as a daily driver or dedicated track car

When doing a timing belt replacement it is always a good idea to replace the tensioner(s)/idler pulleys while you are in there

GrimmSpeed StealthBox Cold Air Intake Red Subaru STI 2015-2021 vendor_Killer B The Forge valve uses fullYou've been asking for this bad sally for a while and it's finally here. The intake the for the 15+ STI can be thought of as a hybrid of the tube and filter used in the 08 14 WRX intake and the Stealthbox heat shield used in the 2015+ WRX intake. Small design changes were made, but the overall fit and performance is approximately the same. Part #: 060078 Quick Specs Hybrid Cold Air Short Ram Design Combining the advantages and eliminating the