I bought a zex kit for 400 bucks and cut my time from 15.3 @ 91 mph to a 13.92 @ 102 mph on a 75 shot. That throws out the theory for a 1000 bucks you can make a protege fast when you can do it for less than 500 for a lude. If people want to talk about mazdas do it in the right forum, not in a prelude forum !