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.
Easy direct bolt on
Sold as pair
Extended bolts included
Temp testing data = Over 12°C drop !
Made in USA
|Subaru||Impreza||GD - 01-07||WRX & STI|
|Subaru||Impreza||GR - 08-14||STI|
|Subaru||Impreza||VA - 15-..||STI|