don't bother, the only way you get real power out of the computer is going to a professional tuner and getting a mafless tune. It may cost you around $1000+ but its worth it considering how much more power you get..... at least 20rwkw++++
most of us are gettin equally good reults while still using the MAF these days, it just depends on what you are after, if you want a 95% accurate tune mail order stuff is the way to go for half the price of a full tune.