Guide line seams are sewn into the edges to ease installation.
Design Engineering Exhaust Wrap Kit - 10110 The first step in controlling underhood temperatures is to keep heat in the exhaust and evacuate it out of the engine compartment. Black;2 x 50 fppt roll;1 can of HT Silicone Coating Spray;California Residents: WARNING DEIs Exhaust Wrap will reduce underhood temperatures by up to 50%, while providing additional horsepower, engine protection, and passenger comfort.