Hooker Exhaust Manifolds - 2-1/2 in Outlet - Raised D Port - Black Ceramic - Small Block Chevy (Pair) SB180020 intelligently engineered parts

intelligently engineered parts

This tells the ECU which cylinder is cylinder #1 (or the first cylinder in the firing order as entered in the software)

2020-2021 Ford F-350 Super Duty XLT Standard Cab Pickup

Rubber boot threads on after installation to help seal out the elements

Hooker Exhaust Manifolds - 2-1/2 in Outlet - Raised D Port - Black Ceramic - Small Block Chevy (Pair) SB180020 intelligently engineered partsThese manifolds do not fit 1st generation F Body cars. These cast exhaust manifolds have been designed to fit into a wide variety of replacement and engine swap applications, with final outlet connections to be fabricated by the installer. The manifolds will not directly bolt onto factory downpipes. Made from high silicon molybdenum ductile iron for high temperature strength plus resistance to oxidation and cracking Designed with a larger 1 5 8" cross