Doug's Mid Length Headers - 1-7/8 in Primary - 3 in Collector - Black - GM LS-Series - GM F-Body 1970-81 (Pair) 51111231 1981-1986 Mercury Cougar

1981-1986 Mercury Cougar

100 in Bore

1994-1999 Chevrolet K2500 Suburban

M6 terminals for FHR anchor attachment and homologated for use with approved head and neck devices

1968-1974 Dodge W100 Pickup

Doug's Mid Length Headers - 1-7/8 in Primary - 3 in Collector - Black - GM LS-Series - GM F-Body 1970-81 (Pair) 51111231 1981-1986 Mercury CougarProduct Description: Headers Mid Length 1. 875 in Primary 3 in Collector Steel Black Paint GM LS Series 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