This kit includes the parts to do the turbo rebuilds and to do the wastegate Flapper rebuilds or repairs. Turbo Rebuild Kit is Upgraded with Upgrade collar, spacer and thrust bearing. Also includes the o rings for installation. Upgraded collar and Spacer (some machining Required). Seal plates, c-clips & o ring. BMW N54 135i 335i 535i Wastegate Rattle Repair. They are tig welded to ensure longevity. 2006+ 135i, 335i, 335xi, 535i, 535xi, 1M, X6, Z4, E60, E71, E89, E90, E92, Wastegate Rattle Repair Parts. Includes Repair Parts for 2 Turbine Housings. Fix Wastegate Wear, Which Causes ...