BD Diesel Manifold Exhaust - 2001-2010 Duramax $100 - $150 A huge inlet and outlet

A huge inlet and outlet

5-Bolt design

The purpose of a BOV is not just to sound cool

Aggressive engagement

2004-2005 GMC Sierra 1500 Base Fleetside

BD Diesel Manifold Exhaust - 2001-2010 Duramax $100 - $150 A huge inlet and outletYou may not know it, but the factory drivers side exhaust manifold is pinched down to allow for steering shaft clearance, which actually is not required. As a result, thismanifold only flows 80 percent of the passenger side. BDs Full Bore exhaust manifoldrestores exhaust flow balance, improving power and reducing EGT. Made from high silicon ductile iron, the Full Bore is a direct, bolt in replacement for the factory manifold and is even drilled and