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EG33 X35 Design Phenolic Spacers (EG33PS)

Product Description


Phenolic spacers lift the intake manifold off the super heated engine
 to lessen the transfer of heat. Both the intake manifold and engine block are aluminum so the high heat transfers very quickly. These spacers stop that. The cooler the intake charge the more HP and TQ your engine will make. 

In addition to cooling your intake charge, these will also give you larger intake volume similar to that of a throttle body spacer. This kit also has the option of including a throttle body spacer as well.

What it does:

  • 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 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 X35's 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


How it works:

  • The intake air in your engine travels through the airbox 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 a lot 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 X35 Design 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 the hotter end of operation around 200 degrees F, so the Phenolic Spacer is well within its max running temperature. Phenolic materials have been tested and are  also safe to run race fuel, E85, and methanol.
  • The Phenolic Spacer will conduct 300-900 times less heat than the oem steel gasket.

Phenolic Spacers for EG33 / Subaru SVX intake manifold and throttle body. These kits are 5/16" (8mm) thick, they include spacers and necessary longer bolts. Shipping within the USA is included in the price. Gaskets are not included


Why not go that extra step to get yourself past the competition?

$145.00
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