TT, i'm well aware that american fuel isn't good enough to run lean burn mode
but saying american tuners don't include lean burn mode for EU based cars is wrong
I'm not going to quote from what was said exactly because i can't be bothered doing a search but I remember it being said on here some months ago that Regal used their own car (demo RSS) for the development of Giac UK software and they didn't modify the lean burn part of the file, why would they need to? Awesome work very closely with APR in house with their software development so who does that leave?