Hooker Header Back Exhaust System, 1973-87 GM C-10/20 2WD 3" Rear Exit 409SS Tubing with 304SS Mufflers Hooker Header Back Exhaust System, 1973-87 GM C-10/20 2WD - 3", Rear Exit, 409SS Tubing with 304SS Mufflers Full stainless steel exhaust system comes complete with stamped crossover for a broad... MSRP: Was: Price: Now: $1,259.95 Quick view Add to Cart SKU: 70501417-RHKR