Greetings all. I am SERIOUSLY considering sending my computer to TAP for an upgrade on my '91 90 20V. I have a couple of questions: 1) Where the hell is it? 2) Has anyone here done it on this motor and noticed a difference? 3) Is it worth it in the long or short run? 4) will I be disappointed in it? Im not expecting to turn it into an S6, but at least to turn it into a pinto ;-) Thanks in Advance. Bob