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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 new real Phenolic Intake Manifold/TGV to Engine Thermal Spacer.
Phenolic spacers have been used for years by many other specialized automotive companies, but this is very new technology to the Subaru world.
reduces the transfer of heat from engine to intake manifold
One of a kind true Phenolic material, not cutting board material like others.
The cooler your intake temperature is the denser the air is which leads to more power
Direct bolt-on. Users may reuse stock bolts intake manifold.
We have installed both with and without OEM Subaru Gaskets and have had no issues with either way. We do recommend using 2 sets of oem gaskets however, one on both sides of the spacer.
USA made
Applications:
02-07 WRX
02-07 STi
02-07 Legacy GT
02-07 Forrester XT
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