Ok guys, here's the scoop. I plan on adding a wet shot of spray to my car, and tuning it via MAFterburner, or Neo, whichever I get a better deal on. The two kits that interest me are the Dynotune kit and the Zex kit. I like the Zex kit because of the brainbox that it comes with that allows it to never be too rich or too lean. I also like the dynotune kit because of the price. My question is, if I plan to get some sort of a tuner, would that render the brainbox that comes with the Zex kit useless? If I can save some cash, I would and spend it towards a tuner. Sorry, but I'm still learning about spray, seeing as how both my last two vehicles were forced induction. Thanks guys for the input.