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BD Diesel Performance
Home > BD Diesel > Exhaust Related > BD Exhaust Manifold

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BD Duramax Exhaust Manifold

Manufacturer: BD Diesel
BD Part Number: 1041460
Our Part Number: BDD1041460
Fits: 2001-2010 GM Duramax
  • Increases exhaust flow by 20%
2001-10 Chevy / GMC 6.6L Duramax Big Bore Manifold

BD "Full Bore" Exhaust Manifold

You can easily remove the final restriction in your exhaust system by replacing your factory exhaust manifold with a BD Diesel exhaust manifold. Dyno testing has shown that these flow more efficiently and will increase power, lower exhaust gas temperatures (EGT's) and improve your fuel economy.

Improve exhaust flow, reduce exhaust gas temperature (EGT) and realize greater power gains with the new "Full Bore" driver's side exhaust manifold for the '01-'06 GM Duramax.

You may not know it, but the factory driver's side manifold is pinched down to allow clearance for the steering shaft, which actually isn't required. As a result, this manifold flows 80% of the passenger side manifold. The BD Full Bore exhaust manifold restores exhaust flow to match the passenger side, and is a direct, bolt-in replacement for the factory part (GM gasket required). The BD Full Bore manifold is made from high-silicon ductile iron to resist cracking from high temperature and vibration, and is even tapped to accept the most popular EGT probes.

The BD Big Bore exhaust manifold is a great compliment to BD's new SuperMax turbo upgrade kit and stainless steel X-Hale exhaust systems.

Related Products:
  • GM Exhaust Manifold Gasket Part #98002804 (Gasket not included)
The stock manifold:
  • Only flows 80% of the passenger side manifold
  • 3 cylinders only operate at 80% capacity & load others down
  • No access to measure exhaust temperature
The BD manifold:
  • Flow matches the passenger side manifold and balances the engines exhaust pressure.
  • Maintains consistent exhaust pressure and temperature on both sides of the engine.
  • Contains Exhaust temperature probe port.
This replacement driver's side exhaust manifold balances engine power, reduces cylinder load, reduces exhaust temperature, exhaust back pressure while improving your truck's fuel economy. Its constructed of high silicone ductile iron which can withstand extremely high temperatures and engine vibration.
Features and Benefits of the BD Exhaust Manifold
  • Drilled & tapped to accept EGT probe
  • Easy bolt in replacement for factory manifold
  • Made from high silicone ductile iron to resist cracking from high temperature & vibration
  • Increases exhaust flow
  • Great compliment to 4 and 5 inch exhausts
  • Be sure to view all of our BD Diesel Performance products online at Thoroughbred Diesel.
Product Description Price Order
BD Performance Exhaust Manifold
2001-2010 GM Duramax
BD Part # 1041460
Our Part # BDD1041460
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