i had ksport gt spings on illuminas before i got my ff type 1's. They give you a great drop for springs and are fairly stiff. Would not suggest pairing them with oem struts or any other oem replacments. I would pair them with tokico illuminas or koni yellows, maybe tokico blues, haven't had any experiece with them but other ppl seem to run these with similar drops. I had about a 1, 1 1/2 finger gap with 215/35/18 tires. You'll need a camber kit in the rear at least. I also removed the rubber bushings on the top mounts which gave me an extra 1/4'' to 1/2'' and didn't make any noise over bumps either. (i have pics with them on when my car it was green, check my page)