01-10 Duramax BD Diesel Full Bore Driver Side HD Exhaust Manifold Cooling purchased separately)

purchased separately)

Some competitor adapters use a finger that pushes on the ball of the drain back valve in

Laser-cut 304 Stainless Steel

ARP main and head studs are a must have item

NPT fittings can normally be sourced locally

01-10 Duramax BD Diesel Full Bore Driver Side HD Exhaust Manifold Cooling purchased separately)01 10 Duramax BD Diesel 1041460 Full Bore Exhaust Manifold will restore the balance to your engines exhaust flow, reduce cylinder load and reduce exhaust gas temperatures. The factory driver side exhaust manifold in your 01 10 Duramax is pinched down to allow for steering shaft clearance that isn't even required! As a result, your exhaust flow is significantly disrupted. The BD Diesel Full Bore Exhaust Manifold addresses this issue by maintaining