Grimmspeed 8mm Phenolic Thermal Spacer – Subaru WRX, STi, FXT, LGT, OBXT & Baja Turbo

$81.61

Note: Includes Longer Bolts and Washers

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.

What it does:

  • Greatly reduces the transfer 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 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 Subaru Gaskets and have had no issues with either way. We do recommend using 2 sets of gaskets however, one on both sides of the spacer.
  • USA made

How it works:

  • The intake air in your engine travels through the airbox into the turbo, then into the aluminum intake manifold. The air exits the intake manifold and goes directly into the engine.
  • While the intake air is within the intake manifold it picks up alot of heat from the aluminum intake manifold. This added heat reduces air density thus reducing engine power capabilities.
  • In stock form your engine has a steel gasket between the intake manifold and engine which allows the heat from the engine to quickly transfer into the intake manifold. By replacing this steel gasket with the GrimmSpeed Phenolic Spacer you are greatly reducing the transfer of engine heat into the intake manifold.
  • Phenolic Spacers are able to withstand 500+ degrees F. Subaru engines run at around 200 degrees F, so the Phenolic Spacer is well within its max running temperature. GrimmSpeed has tested that it is also safe to run race fuel, E85, and methanol with the Phenolic Spacers.
  • The Phenolic Spacer will conduct 300-900 times less heat than the oem steel gasket.

Additional information

Weight0.49 kg
Dimensions26.00 × 9.00 × 3.00 cm

Reviews

There are no reviews yet.

Be the first to review “Grimmspeed 8mm Phenolic Thermal Spacer – Subaru WRX, STi, FXT, LGT, OBXT & Baja Turbo”

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Applications

Models suitable for this product

MakeModelYearSubmodel
MakeModelYearSubmodel
SubaruBaja2004 - 2006XT - 2.5L Turbo AWD
SubaruForester2004 - 20132.5XT
SubaruImpreza2002 - 2014WRX
SubaruImpreza2004 - 2014WRX STi
SubaruLegacy2005 - 20092.5GT
SubaruLegacy2006 - 2009Spec B.
SubaruOutback2005 - 20092.5XT
SubaruWRX2002 - 2014
SubaruWRX STi2004 - 2020

Got something to discuss?