RCM O Ringed Thermal Spacer Kit V5/6 Exhaust Systems - RCM Cylinder Rebore and

- RCM Cylinder Rebore and Hone

A forging is still the best way to manufacture a piston

and enhanced engine performance

The final vital component is the Thermostatically Controlled Oil Sandwich Plate

This RCM exhaust centre section is designed to fit Impreza's from 1992-2000

RCM O Ringed Thermal Spacer Kit V5/6 Exhaust Systems - RCM Cylinder Rebore andThe 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