GrimmSpeed Tumbler to Engine Gaskets (Pair) Subaru Subaru If performance is what you

If performance is what you want

- 1/8th NPT port w/ stainless plug

With the 4-pad spring-centered race disc

The PERRIN Performance boost controller cover for the Subaru STI is constructed of 5052 plate aluminum with precision bends and mounting holes to fit perfect under your hood

Mishimoto Intercooler

GrimmSpeed Tumbler to Engine Gaskets (Pair) Subaru Subaru If performance is what youGrimmSpeed Tumbler to Engine Gaskets GrimmSpeed offers an enlarged variation of the standard size OEM gasket. Why do you want the enlarged bore style vs. OEM style? The OEM gasket hole diameter is much smaller than the TGV itself so you are very limited on matching up the ports of the outlet of the intake manifold going into the inlet of the TGV. GrimmSpeed's gasket will not intrude into the flow path, restricting flow! FITMENT: Subaru STI 2004 2014