- This product is a 12-piece front control arm kit for the Audi A8 and S8 models from 2010 onwards. It includes both upper and lower control arms, as well as bushings. The kit is manufactured in China and comes with a 6-month manufacturer warranty. The kit is compatible with OE/OEM part numbers 4H0 407 151B C, 4H0 407 152 B C, 4H0 407 693 F G C, and 4H0 407 694, as well as superseded part numbers. The control arms can be placed on the left, front, and right sides of the vehicle.