Performance valve springs for BMW 6 cylinder diesel engines. This set fits:
Valve springs have about 30% more valve seat pressure than stock BMW springs. They very effectively solve valve float problem when putting high boost to these engines but do not damage the engine or camshafts. For stock camshafts only.
- BMW 325d, 330d, 335d (E46, E90 years 1998 - 2009)
- BMW 525d, 530d, 535d (E39, E60 years 1998 - 2009)
- BMW 635d (E63 years 2004 - 2009)
- BMW 730d (E38, E65 years 1998 - 2009)
- BMW X3 with 3.0d engine up to 2009
- BMW X5 with 3.0d engine up to 2009