LS4 Performance - Lowering

More questions!!!

Since I'm going to be looking into new shocks, it may be a good idea to drop the car just a bit.
So...

1. I only want to drop it like an inch at most. All I have seen are 1.5 inch
2. Will this cause tire rub?

Ive seen 22" wheels with a 1.5in drop that didnt rub.. you should be ok

That's pretty aggressive. Do they even have springs that will lower only an inch?

Im thinking bout coilovers instead of blowing money on replacement shocks and upgraded springs