You can cut the front springs. I'd cut one coil from each which will lower it about 1". If you want it to drop 2", cut the other end of each coil. But that's about the maximum you want to cut.
Regarding the rear coils, it can't be done because it's spiral...pigtail type coil.
It's best to buy the rear coil springs from CPP 1-800-522-5004.