I thought that "eskiasu" summed it up nicely!, I have pedders 30mm lowered coils which are progressive this is a must for BMWS some aftermarket stuff is not progressive but like big thick wire it makes the car handle like shit !!!!!. Progressive are alittle more than normal but it is what the car is designed for. they were 120each NZ about 80bucks american I think? then I went to short stroke HIGH repertion spelling? bilston shocks all around many people just put beefer shocks in but I think it is essencial to put the lowered ones i for a better setup, I got all the M-TEC stuff like struts etc.
PS I had my car down to 52mm of the ground I am not sure what the orginal ride height of a 328is is but I beleve its a drop of about 2 inchs maybe more, if you are serious about lowering your car make with absoulute certainy that you make sure your car does not touch the dive shaft, diff or any other parts of the underneath, the first thing that you will break is the plastic under the brakes and radiator, their pretty cheap though and get your second one made up in alloy heaps better,
Um I think thats all. the reason I say this is because you can go way way to low and it will damage your car SEVERLLY. I spent about $2-3 fixing up my car as the guy before me had lowered it to the ride heght I said earlyer, all the bump stops kept wearing out the drive shaft got caught up in the insulation in the tunnel. I blew a shock out etc.
the setup was standard with kings installed, they were not progressive either.
and just if your wondering the guy put them in just a couple of days before I brought it and I saw the date of purchase I drove it for a further 2 weeks then changed it!
just my 2c