Roger Clark 8mm O Ringed Thermal Phenolic Spacer Kit Catless Aspirated Down Pipes/Front Pipes white oil pressure and black/white

white oil pressure and black/white fuel pressure faceplates available separately (30-0301-ACC)

high-quality T-304 austenitic stainless steel

(Some competitors simply smash the ends of their bars flat

Strapped to a Mainline Chassis dyno (well known for their accuracy and repeatability) the first test was to perform totally cold runs between KHANACOOLER and stock to show the gains that come from less boost restriction alone

Roger Clark 8mm O Ringed Thermal Phenolic Spacer Kit Catless Aspirated Down Pipes/Front Pipes white oil pressure and black/whiteThe RCM O Ringed Thermal spacer kit contains everything required to install our Phenolic Spacers to your Subaru. The kit is designed to aid in the reduction of the air inlet temperatures in the inlet manifold, by isolating the manifold from the heat travelling through from the engine's cylinder heads. Sealing between the spacers, manifold and cylinder heads is by the clever integral double "O ring" design meaning conventional manifold gaskets are no