BD Duramax Exhaust Manifold
About the BD Duramax Exhaust Manifold
Duramax Balancing Big Bore Exhaust Manifold. Makes it easy for your engine to exhale. Driver`s side full bore exhaust manifold for the Duramax balances your engine power, reduces cylinder load, reduces exhaust temperature, exhaust backpressure and improves fuel economy. BD uses a high silicon Ductile iron that prevents cracking from heat expansion and vibrations. Manifold gaskets required.
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.