These are my buddies cars, the S4 is a high 12sec. car, the Evo is stock, and the wrx has an turboback, upipe, and EBC.
I raced that S4 last night and was half a car ahead from 40mph to 100mph, then he passed me. He uses a chip that requires race gas, and I was also using 100oct. also making a race gas map for my UTEC . I think tonight I will get our race on video if I can and post it tomorrow; I did some more tuning and my car feels better.
BTW if any of you have experience making a race gas map with the stock turbo/injectors check out my thread on Nasioc and give me some pointers!