Do you know what your intake manifold sits on?...a superheated boxer engine. If you don't know already, the cooler your intake air is the more HP your car will achieve. We present you the answer to this age old problem, raising the intake manifold off the engine with GrimmSpeed's Phenolic Intake Manifold/TGV to Engine Thermal Spacer.
Phenolic spacers have been used for years by many other specialized automotive companies, but this is new technology to the Subaru world.
04-08 Subaru Forester XT 2.5 EJ255
09-13 Subaru Forester XT 2.5 EJ255
05-09 Subaru Legacy GT 2.5 Turbo EJ255
04-07 Subaru Impreza WRX STI 2.5 Turbo EJ257
08-14 Subaru Impreza WRX STI 2.5 Turbo EJ257
15-21 Subaru WRX STI 2.5 Turbo EJ257
02-05 Subaru Impreza WRX 2.0 Turbo EJ205
06-07 Subaru Impreza WRX 2.5 Turbo EJ255
08-14 Subaru Impreza WRX 2.5 Turbo EJ255
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