LS Coil Pack Heat Shields solve the problem of failing coils from extreme engine heat and get rid of the need to relocate coils. DEI's LS Engine Coil Pack Heat Shield eliminates the need to relocate coils packs and prevents premature coil failure due to overheating. Easy to install precut shields install under the coil bracket reducing the radiant heat to the coils from the engine and exhaust. Works on factory and aftermarket coils and brackets. Not recommended for LS7 engines. Semi-Ridged shield made from double sided aluminum & high temperature foam core Insulates & reflects heat away from the coils Extends coil life Sold in pairs