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      02-17-2014, 12:35 PM   #18

SteveMD's Avatar
Drives: '12 X5 50i, '11 GTI DSG
Join Date: Dec 2005
Location: Raventown!

Posts: 2,419
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2012 X5 50i  [0.00]
Originally Posted by Sylvan Lake V35 View Post
Last I heard the BMS tune for the X5M had "issues" and provided next to no gains. I also heard decided not to continue with the development and he no longer offers it.
The Stage 1 tune did not work very well with the N63TU and S63TU engines so that's not the X5M. I can't say for sure but it is my understanding that all users were contacted and the tune was remapped or replaced free of charge because that's how Terry works. The functional version for all N63/S63 engines including TU variants is for sale:

Stage 2 for the N63/S63 is out in beta now with the TU variants coming not far behind. I know three or four folks running it on various FB groups and it looks solid.
2006 E90 330i (retired)
2009 E90 335i (retired)
2012 E70 X5 50i M Sport, JB Stage 1, 4.6 secs 0-60.