At the heart of any performance vehicle is the exhaust system. Hooker with its BlackHeart line of performance exhaust systems continues to push the boundaries of performance and engine swaps. Check out these 304 stainless steel LS/LT engine swap exhaust systems for the popular 1963 - 1972 Chevy/GMC C10/C15 trucks. 3 inch H-pipe crossover system with dual side exit.