NOTE: Dinan Performance Spring sets should be purchased and installed with the corresponding Ride Quality and Handling Kit to achieve the advertised ride height performance and ride quality. While not explicitly required, if the matching component is not purchased and installed you will get less than favorable results in the form of poor ride quality and improper handling traits. While we will maintain a full warranty on product defects any claims against the cars improper handling ride quality traits due to not purchasing the corresponding handling kit will not be warranted.

Features

Vehicle lowered 1/2" in the front and rear (F22 228i/230i RWD)

Vehicle lowered 5/8" in the front and 3/4" in the rear (F32 428i/430i RWD)

Compatible with both conventional and factory electronic shocks

50% increase in spring stiffness (F22 228i/230i RWD)

41% increase in spring stiffness in front and 29% increase in the rear(F32 428i/430i RWD)

Substantial reduction in body roll

Preset to prevent spring sag