GrimmSpeed Phenolic Thermal Spacer 3mm 2002-2014 WRX / 2004-2021 STI / 2005-2012 LGT / 2004-2013 FXT

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 Phenolic Intake Manifold/TGV to Engine Thermal Spacer.

Phenolic spacers have been used for years by many other specialized automotive companies, but this is new technology to the Subaru world.

DETAILS:

• 3mm in thickness
• Designed to absorb the heat from the engine and the intake manifold
• Reduces heat soak
• Super durable phenolic material construction 
• Creates cooler and denser air which increases the amount of air that mixes with the fuel which improves the overall efficiency
• Every 5 degrees in temperature drop will increase the horsepower by 1%
• Direct bolt-on installation
• Can withstand operating temperatures past 500°F
• Capable of conducting 300-900 times less heat when compared to the steel intake manifold gaskets
• Sold as a pair