Well, within the next 6 months I am planning on adding a pi intake and a set of 4.10's. I was just going to get the hypertech programmer to correct the speedo and all that, its around $380. Well, I called detroit speedworks today (they are like 15 minutes from my house) and they said they could do a custom tune, to correct the speedo and account for the pi intake for $400. Which one should I do? Will I get more benefits out of my custom tune, or would I be just as well off with the hypertech programmer? They stated that with a PI intake on a 98 I would for sure need a custom tune. Is this true? If so I guess the custom tune is the way to go. Thanks for the input.