Exhaust Manifold
Exhaust Manifold
Section titled “Exhaust Manifold”The M54 uses a cast iron exhaust manifold (headers) with two sections merging into a single downpipe.
Specifications
Section titled “Specifications”- Material: Cast iron
- Configuration: 6-into-2-into-1
- Exhaust manifold nut torque: 20 Nm
Common Issues
Section titled “Common Issues”- Cracked manifold (heat cycling)
- Exhaust manifold stud corrosion/breakage
- Gasket leaks (ticking sound on cold start)
- Heat shield rattle
Upgrade Options
Section titled “Upgrade Options”See Performance section for header upgrade options.