BBK shorty tuned-length exhaust headers for 1999–2013 GM Truck and SUV V8 6.0L applications (full-size 2WD/4WD) are CNC mandrel-bent and built with 1-3/4" primary tubing to improve exhaust flow and scavenging. These direct-fit replacements include new gaskets and hardware, a titanium ceramic finish option, and are precision welded and pressure tested. The listing specifies they do not fit HD 2500-series trucks or several other excluded models.
BBK 99-04 GM Truck SUV 6.0 Shorty Tuned Length Exhaust Headers - 1-3/4 Titanium Ceramic