Doug's Full Length Headers - 1.75 in Primary - 3 in Collector - Ceramic - Small Block Chevy - GM F-Body 1967-69 / X-Body 1968-74 - Pair GBDXS3 Used by many Cup and

Used by many Cup and Grand National teams

GM F-Body 1998-99

Mechanical Secondaries for perfect off the line launches

1968-1971 Dodge W100 Pickup

Doug's Full Length Headers - 1.75 in Primary - 3 in Collector - Ceramic - Small Block Chevy - GM F-Body 1967-69 / X-Body 1968-74 - Pair GBDXS3 Used by many Cup andProduct Description: Headers Full Length 1. 75 in Primary 3 in Collector Steel Ceramic Small Block Chevy GM F Body 1967 69 X Body 1968 74 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