Doug's Full Length Headers - 1-7/8 in Primary - 3 in Collector - Black - GM LS-Series - GM A-Body 1964-67 (Pair) Oil Filter Mount P2500 1989-1979

P2500 1989-1979

2019 GMC Sierra 1500 RWD

00 in Compressed / 21

The pre-loaded spring will have less rate increase as the suspension travels

10 in Tall

Doug's Full Length Headers - 1-7/8 in Primary - 3 in Collector - Black - GM LS-Series - GM A-Body 1964-67 (Pair) Oil Filter Mount P2500 1989-1979Product Description: Headers Full Length 1. 875 in Primary 3 in Collector Steel Black Paint GM LS Series GM A Body 1964 67 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