I agree with Eracer, don't go cheap with these cars, you will pay for it in the end... and without warranty, the labor alone will murder you. Eracer and My65Cuda are the ones that appear to have done this with good success. My65cuda recently sold his SRT6 though, and has a stable of other cars to keep him busy. But, he may answer now and then. Renntech and ECU/pulley change will let you sleep at night.