Hey man, if your after bang for buck like i was at the time, this worked pretty well... and i did it in this order over a year or two
1. Superlow king springs $400 installed (outstanding difference)
2. Whiteline rear sway bar $160
3. k&n replacement box filter $130 (now for sale for $20)
4. 2.5" cat back system $450
5. exedy heavy duty clutch $360 (also for sale for $100!)