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 99+ 2.5L N/A Phase 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....well 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 a larger intake plenum similar to that of a throttle body spacer. These all come in our Triple Thick 8mm thickness for maximum heat protection. Why not go that extra step to get yourself past the competition? Applications: All 99+ 2.5L N/A Phase 2 Subaru engines Like our other thermal spacers we suggest putting oem subaru gaskets on top and bottom of each spacer to allow proper sealing. You can buy these on our online store as well for much cheaper than the dealership.
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