Get the front coil over kit from upr. Its under $200. and cut a coil off the top of your rears. this will drop the rear 1-1.5" and the front is now infinatly adjustable and reduces your brake dive and body lean in turns a ***** load. The UPR kit comes with 5 different choices of spring rates and all you need to do to install them is jack up the car, pop the old spring out (use crowbar and cussing) and unbolt the top of your shock. Then you slide on the UPR hardwear and your set. Remember to get it aligned.
The rear spring you can cut with a grinder, or a hand hacksaw easily. Remember to cut the top, not the bottom. And keeping this soft stock spring will really help your launches as some aftermarket springs (hks) are really stiff and just make you spin because there is little weight transfer.
Last you want to cut an inch off of your rear pinion snubber or buy an aftermarker shorter one. (cutting is easier, and free.)