If you can afford the extra cash, get the AGX's you will LOVE the adjustability they afford you. I found the GR-2's a bit to harsh for my liking. I have the AGX's with my SSC Gen 2 Lowering springs and simply love them!!

I say hold out until you can afford the AGX's, if your current struts are shot? Then go with the quick fix GR-2s. I am guessing this KYB Quick kit comes with stock type springs?