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- Wed Aug 09, 2017 9:13 am
- Forum: General X5 Forum (E70 2nd-gen, 2007-2013)
- Topic: www,bwchiptune.co.uk remaps offers for xdrivers
- Replies: 85
- Views: 59518
Re: www,bwchiptune.co.uk remaps offers for xdrivers
Hi Jason, I have a 2012 X5 40d 306hp. I recently purchased a Racechip. My ultimate goal was not outright performance gain, but improved MPG and retention of drivability. I have found the Racechip does not deliver any real improvement in MPG and whilst midrange is significantly improved, the ...