Unfortunately, you will find much of what I've already found. That's a bunch of ads telling you exactly what you want to here, with un-real hp and torque gains all over the band. The best place to get advice is right in here. Take what we (those who already have the items) have learned and form your own opinion. IMO, I recieved an 80mm MAF and 70mm TB from a friend who had it installed with an MAC CAI in his 99 GT. Worked great for him. He saw a 2 tenths gain in the 1/8th!!!! We recently installed it on my 98 GT (same mods as him, just different year) and I lost 4 tenths in the 1/8th, with a noticeable difference in torque. So you see, you can learn more from reading a vast array of opinions in here than you might by reading one ad in a magazine. Take it from the guys who got took first!