Headers for 1999-2001 Truck (no HD Models) and 2000-2001 Suburban, Yukon, Tahoe and Avalanche. Part numbers THY-310Y-C. These are set up for trucks equipped with the 4.8, 5.3, 6.0 or 6.2 Liter engines and are CARB legal.
These Doug Thorley Tri-Y headers are constructed of 14-gauge 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!