Grimmspeed 8mm Phenolic Spacer 99-01 Impreza / 00-04 Legacy

GrimmSpeed
grm017001
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Gaskets and Hardware

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$79.00
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$79.00

Part # 017001

Do you know what your intake manifold sits on?...a superheated 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 the new GrimmSpeed Phenolic Thermal Spacer.

What it does:
* Greatly reduces the transfer of heat from engine to intake manifold thus reducing heat soak.
* 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 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.
* 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 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



Grimmspeed 8mm Phenolic Spacer 99-01 Impreza / 00-04 Legacy
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