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      02-29-2012, 09:15 AM   #48
Army X5 S5
Lieutenant Colonel
Army X5 S5's Avatar

Drives: '11 X5 35i / '13 S5
Join Date: Jun 2009
Location: Deployed to Kuwait

iTrader: (2)

only time I had issues with the JB3 was when it was first released (as I was the test dummy for the X series), but after the last update back in march '11 no issues with the tune... I've had another issue, but i don't think its the tunes fault... When I got the FMIC upgraded, the JB3 actually caused a boost leak when set to +5 over boost (because the silicon hose popped off the passenger side of the FMIC)... I need to update my sig block because I'm set to only +3 over with no pop off issues...

I may invest in a CP as well, but I don't see any that are compatible with the E70/F10 series... (X5 and 5 series share the same parts)

BMW X5 35i: Boopie Exhaust, Boopie Intercooler, K&N Drop in Filter...
Audi S5 2013 (Delivery Sept 2013): Mods pending review