OK, I'm sick of retards just yapping about something they dont know about. I have a 99RS and a few mods and I've been running a zex kit. For awhile now. I run a 55 shot and my car loves it. I would run higher but in 99 they changed the ignition and you cannot ajust your ignition retard. So i have to get MSD or something. Zex works AWESOME. :)