RCM O Ringed Thermal Spacer Kit V3/4 39381-T60-G01 a completely new design

a completely new design

A performance engine oil featuring NANODRIVE low friction technology for vehicles requiring a 0w30 viscosity

running multiple tests with various prototypes we finally made an all-around satisfying product

Excellent Nissan quality and a common pain point on the SR20DET

It can be installed on vehicles with genuine SU carburettors (heat shield modification required)

RCM O Ringed Thermal Spacer Kit V3/4 39381-T60-G01 a completely new designThe 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