[sleeper_stang_2000]

I want to purchase the Diablo Delta Chip. When I look at the prices, it varies depending on whether or not I want "2 Performance files" or "1 performance and 1 custom". Which one do I get? I plan to have the car tuned on a Dyno when the chip is installed. What do I order and what takes place when I take it to the Dyno? Does the shop call Diablo and give them the Dyno results and Diablo sends them a file via internet? How does the process work? Thank you for your answers. BTW, how much time do you think my ET will drop by? My car is a 2000 GT, Automatic, stock gears. See Signature for times.....thanks....oh....and is it worth it for the chip? Best place to buy it from?