postbox1918 wroteThat's exactly what happened to me. I'm torn between RK, ECC, and Carbahn. There's a recent dyno posted in the g30 5 series forum, a m550 posting like 608whp with Carbahn. Only an intake an midpipe, so that's actually really good numbers.I called carbahn and spoke to there tuner and he confirmed that xhp tune is not supported with there tune
I think because they provide factory warranty option to purchase with tune so that's why they don't want people to push there cars to full limit and cause issue with engine and transmission.
Now I'm completely confused 😕 to decide if i should go with carbahn or not.
However, the tq per gear can be controlled in the xhp app. If I do Carbahn, I'll just set first to stock (750), and each gear 10% higher until like 1075. The tq levels will be likely higher than advertised then. I just can't help but think Carbahn's tune is just a rebranded ots tune, simply with some higher boost.
ECC seems good- really high numbers though which is scary.
