I originally looked at Knight systems but recently I've decided to go with another company. Probably RIPP Mods. Check on
www.3si.org and search for it and you'll find some threads.
Electric S/C are crap almost all the time. That's why you see them so often on E-bay and they either don't sell or go for under a grand....they generally don't work. I know cost is a concern but I'd definantly say, go with the most complete kit offered. Seriously, most of them say they can run on stock engines but then, there is a reason they offer the other stuff. If I'm gonna run something like this on my car I want the most HP available and I want it to be as safe as possible. As far as traction goes, you're fwd, you know how easy it is to loose traction. Hell, if it's raining and I get on it too hard after a light I can spin em. LSDs are only offered for the DOHCs I beleive so there really isn't much you can do that I'm aware of. If you really want advice, I'd say get some other minor mods first like pulley and flywheel and a FULL exhaust (not sure but I'm guessing my Borla exhaust you just mean a cat-back) and maybe new plugs and wires, etc. If you have any more question just post them.
-Jeff