So I bought my 01 cobra procharged with dyno sheet showing it was tuned but no tuner was included and I lost the papers that said what tuner was used. (geez im dumb ha). What methods are there to find out what tuned my car? IF I buy an XCAL or something and plug it in could I use that to datalog and stuff? Wouldn't it just save my current tune as stock and as long as I don't upload any new tunes it won't erase it? or do i have to start from scratch, buy a tuner, and get it retuned just to datalog and tweak it, etc.