Headers for 2000-13 GM Silverado / Sierra / Suburban / Tahoe / Yukon
and Avalanche, 2003-09 Hummer H2 and 2000-2018 2500HD with 6.0L LS-style
engine. Part numbers THY-309-S-C with Air Rails. These are set up for trucks equipped
with the 4.8, 5.3, 6.0 or 6.2 Liter LS-style engines and are CARB legal.
These Doug Thorley 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!
**Note: will not fit LT-style engines!