Header for 1999-2006 Jeep Grand Cherokee WJ with a 4.7L V8 Engine. Part number THY-637Y-C . These headers are not CARB Legal.
These Doug Thorley Tri-Y eaders are constructed of Heavy-Duty Stainless or 14-gauge steel tubing with 3/8-inch flanges to give you the best quality you can get in a header! Plus they are ceramic coated to give a lifetime of performance!