Doug's Headers Full Length Headers 1-3/4" Primary 3" Diameter Collector Steel - Ceramic - BB Chevy AK113112B Rated at 170/000 psi /

Rated at 170/000 psi / they're stronger than stock and will last under even the most severe conditions

90 in Compressed / 20

GM 4 cylinder and Ford 4

Engineered as a direct bolt-ons for the Sanden SD-7 & Sanden 508 compressors and machined from solid aluminum these covers attach with the supplied stainless hardware and are polished to a mirror finish

67 mm Twin Blade

Doug's Headers Full Length Headers 1-3/4" Primary 3" Diameter Collector Steel - Ceramic - BB Chevy AK113112B Rated at 170/000 psi /Product Description: Headers Full Length 1. 75 in Primary 3 in Collector Steel Ceramic Big Block Chevy Various GM Applications 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