GrimmSpeed Phenolic Thermal Spacer 3mm
CA$66.68
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.
Grimmspeed Phenolic Intake Manifold/TGV to Engine Thermal Spacers greatly reduce the transfer of heat from your engine to the intake manifold which in turn reduces heat soak. By raising the intake manifold off the engine you create cooler intake temparatures and the air remains denser which leads to more power.
Features:
Greatly reduces the transer of heat from engine to intake manifold thus reducing heat soak.
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
For every 5 degree reduction in air temperature, increases power by 1%.
The cooler and denser the intake air that the engine sucks in, increases the amount of air that can be mixed with fuel thus increasing efficiency.
GrimmSpeed 3mm Subaru WRX STI Phenolic Thermal Spacer
Direct bolt-on.
When running the oem gasket only, your intake manifold gets very hot to the touch, enough to burn your hand. When the oem gasket is replaced with our Phenolic Spacer, your hand can be placed on the intake manifold without any issues.
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
Features:
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Fitments
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