Application For BMW 3 Series ( E90 ) Saloon (2004-2011) 316i, 318i, 320i, 323i, 325i, 328i, 330i, 335i, 316d, 318d, 320d, 325d, 330d, 335d. For BMW 3 Series ( E91 ) Estate / Touring (2004-2012) 316i, 318i, 320i, 323i, 325i, 328i, 330i, 335i, 316d, 320d, 325d, 330d, 335d. Note: 1) This product fit RWD vehicle only, Not for the M3 model. 2) We suggest adding washers to avoid the engine bar and drilling the rear OE shock top mount upper part a little bigger to a diameter of 12mm . Specifications Adjustable height: lowering 1-3inch Top mounts: front - pillow ball top mounts Top mounts: rear - OE top mounts required Damping: not available Spring rate Front: 10 kg/mm (560 lbs/in) Spring rate Rear: 8 kg/mm (448 lbs/in) Spring length Front: 200mm Spring length Rear: 180mm Coilover overall length Front: 485mm-520mm Coilover overall length Rear: 500mm-570mm Shock type: Twin tube Spring Preload: 7-10 mm Feature 1. Lowered height adjustment from 1''-3'' which allow lower center of gravity and