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2001-2008 Duramax BD Full Bore

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SKU: 1041460


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 EGTís. 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.


Balanced exhaust flow for more power and lower Exhaust Gas Temperatures.

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