GrimmSpeed Phenolic Thermal Manifold Spacer WRX (2002-2014) STI (2004-2018) Variations:GrimmSpeed 8mm Phenolic Thermal Spacer WRX/STI (2002-2014) LGT (2005-2009) 911 (996) Carrera 2 Coupe

911 (996) Carrera 2 Coupe

Designed as a OEM compliant replacement plug

LR3 / Discovery 3 | '05 - '09

Cars with an ECU tune that increases boost levels will enjoy this part as you will never have to worry about it leaking under boost

2008-2014 Subaru WRX

GrimmSpeed Phenolic Thermal Manifold Spacer WRX (2002-2014) STI (2004-2018) Variations:GrimmSpeed 8mm Phenolic Thermal Spacer WRX/STI (2002-2014) LGT (2005-2009) 911 (996) Carrera 2 CoupeIn case you weren't aware, the cooler your intake air is the more HP your car will achieve. One way to reduce intake air temperatures is to raise the intake manifold off the engine with GrimmSpeed's Phenolic Intake Manifold to Engine Thermal Spacer. Phenolic spacers have been used for years by many other specialized automotive companies, but GrimmSpeed is one of the first to offer this technology to the Subaru world. Benefits Notes: Phenolic spacers