|
I just recently updated to the latest xHP transmission map (v1.5) and haven't had the surge issue when backing up since. I hope this cured the problem, but not sure.
__________________
2011 E92 335i xDrive M-Sport
MHD 93 Stage 2+ | xHP Stage 3 | xDelete | Catless Downpipe | Phoenix Racing Intercooler | ARM CP | AFE Drop In Filter
|