Balanced exhaust flow for more power and lower EGT ís for your 2001 to 2008 Chevy/GMC/Hummer Duramax Diesel.
You may not know it, but the factory driverís side exhaust manifold is pinched down to allow for steering shaft clearance, which actually isnít required. As a result, this manifold only flows 80% of the passenger side. BDís Full Bore exhaust manifold restores 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 tapped to accept the most popular EGT probes.