Doug's Headers Full Length Headers 1-3/4" Primary 3.500" Diameter Collector Steel - Ceramic 91907 2017-2019 GMC Sierra 2500 HD

2017-2019 GMC Sierra 2500 HD SLT DIESEL Crew Cab Pickup

with the convenience of direct drive

670 in D Port

Sold as a 3pc front and 4pc rear

Doug's Headers Full Length Headers 1-3/4" Primary 3.500" Diameter Collector Steel - Ceramic 91907 2017-2019 GMC Sierra 2500 HDProduct Description: Headers Full Length 1. 875 in Primary 3. 5 in Collector Steel Ceramic Big Block Chevy GM F Body 1970 81 Pair Dougs Headers, the most respected name in the header industry since the 60s, began in 1958 as a small muffler shop in East Los Angeles, California. Every Dougs header comes with all the necessary mounting hardware, collector reducers or connector pipes, premium gaskets and detailed installation instruction sheets. Our extra