I need a tuning setup for my GT40, Saleen S7, and TVR Speed 12. Currently I can get my speeds in the same order as above, 255, 238, 248. Does anyone have a tune that I could use for my GT40 that will give it 260+ MPH, 250+ MPH with Saleen S7, and 255+ with TVR Speed 12 WITHOUT drafting. What upgrades do I need? For the GT40, should I use the stock engine or swap it? P.S if youre not going to post it on the site, message me on Xbox Live : Fade to Black04. I need to beat some of my friends that can dominate me so who ever replies thanks!!!