KW H.A.S.: Height Adjustable Spring Systems
The H.A.S. kit is made for the guy that wants the adjustability of a Coilover set up but doesn't want to get a full Coilover kit. This is a very great solution for those of you that want more low, but don't want to break the bank to do it.
Front Lowering: 0.6" to 1.8"
Rear Lowering: 0.6" to 1.6"
91: Front and rear height adjustable (front and rear springs with threaded height adjusters). Stock shock absorbers including electronic controls are being utilized.