GrimmSpeed Reflect-A-GOLD™ FoilAdding a heat shield to a turbo is a very effective way to reduce under hood temperatures and increase the efficiency of the intercooler. However, heat shields are metal and absorb heat, which will eventually cause heat to effect surrounding components. We at GrimmSpeed decided to increase the efficiency of our heat shields even further by offering an optional, pre cut, fiberglass backed self adhesive gold foil. The DEI Reflect a Gold Foil is an