This M340i came to us to install a set of H&R Sport Springs. H&R has been a customer favourite with the ride quality height it provides. This set (28662-2) lowers the car by either 1.3 inches (front and rear), or 1.6 and 1.5 inches (front and rear respectively), cutting out a good chunk of wheel gap that BMW does a lot on their stock vehicles. The difference in the lowering amount depends on whether or not the vehicle came with the Sport Suspension package. We installed 12mm spacers and extended bolts to rid of the sunken look after the car was lowered.