nos vs zex: laughin is right, i would recommend the zex kit (cause i have one and love it) but both of them are pretty much the same thing. people claim that nos yields a bigger gain than zex on a dyno, and i think that the whole thing blew up into making everyone believe that zex is some weak kit. i bet money that some dyno results will show that zex is more powerfull than nos too. i believe that with both kits, a 50 shot is a 50 shot. a 75 shot is a 75 shot. one kit isnt more powerful than the other. the advantage that the zex kit has, is the easy installation. a monkey can install it. if you want a big name brand that eveyone knows, go with the nos kit. although zex is made by compcams, so dont think its some no name company.
as for plugs, you'll need to get new ones at least one step colder. a lot of people will recommend the ngk's (since they come stock on our cars) one step colder. i run the zex plugs, which are 2 steps colder, just because i needed plugs and no local shop had the ngks. so far my zex plugs are fine, and i havent heard any complaints about them. so either ngk's one step colder, or the zex plugs. laughin, do you agree?
peaces
