Complete swirl flap delete/repair kit for BMW's M57 diesel inline-6 engines, commonly used to permanently resolve failed, cracked, or detached intake swirl flaps — a well-known failure point that can cause rough idle, limp mode, or catastrophic engine damage if debris enters the cylinders.
Kit includes:
- 6x aluminum or stainless blanking plates (swirl flap replacements) sized to fit M57/M47 intake manifolds
- Full set of intake manifold gaskets (upper and lower)
- Compatible with common M57/M47 applications: E38 730d, E39 525d/530d, E46 320d/330d/330xd, E60/E61 520d/525d/530d, E83 X3 2.0d/3.0d, E90/E91 320d, and related M57/M47/M57TU/M57TU2 diesel variants
This is a permanent delete solution (not OEM swirl flap replacement) — flaps are removed and blanked off, eliminating the recurring failure point entirely. Popular with independent diesel specialists and DIY owners looking to avoid repeat swirl flap failures after OEM replacement parts fail again.
Note: confirm exact bolt spacing/diameter (22mm vs 33mm, varies by engine generation) and gasket count with the supplier before ordering, since M47 and M57 variants use different flap sizes.
