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      07-19-2010, 04:33 AM   #30
Jon D
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Drives: F12 640i
Join Date: Sep 2009
Location: Scotland

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Quote:
Originally Posted by Vaheed1 View Post
9th days into having the tuning box fitted and it just gets better and better. The economy is currently sitting on 44.1mpg - before it was between 39.1 and 40.1mpg. Also, I can't believe how smooth the power delivery is. Don't get me wrong, floor it in 2nd or 3rd low down and it can be very harsh.....and it pins me back in my seat - but change gears under normal driving and it's just a constant wave of power and torque until I have to change up.
Thanks for posting the write-ups Vaheed; I'm very tempted to follow suit.
Does the TDI unit interrupt both the common rail and turbo boost signals, or just the fuel pressure?