http://www.motordyneengineering.com/G35.phpG35 & M35 5/16" Iso Thermal plenum spacer
5/16" Iso Thermal plenum spacer (with all Iso Thermal components, Aramid gasket and CCV) This stealth modification adds 11HP-13HP and reduces the effect of power robbing heat soak. The engine cover easily fits and never needs to be cut. With the engine cover in place the engine bay looks completely stock.$ 260.00
does all stb fit for fx35 what size is it needed?