In response to the demand to extend our Phenolic Spacer lineup to include some of the older subaru models, we now have created intake manifold thermal spacers for Impreza 93-99 1.8/2.2 engines.
Thermal 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.
Impreza, Forester 1999-2008 2.5L N/A
Impreza 1999+ 2.2 N/A
Legacy 2000-2009 N/A
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