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      08-07-2021, 03:24 PM   #1
Second Lieutenant

Drives: 2007 760li, 2012 650i
Join Date: Oct 2018
Location: South Carolina

iTrader: (0)

How can I tell if my N63TU is tuned?

Moderator - Please delete this post. I post it in the right forum already. 8/7/21


I sold my 2012 650i about a year ago in the hope that I can get a 650i with an N63TU but the prices went through the roof. I ended up buying a 2014 550i with an N63TU. In sport+ mode, 550i feels faster than 650i. I know it has an additional horse power but either I don't remember how fast 650i was or 50HP makes more difference than I imagined or maybe this car is tuned. In any case, I am wondering how I can find out if my 550 has a stage 1 tune (Weistec or something else) without taking it to dyno? I do have ISTA/P as well as ISTA/D.

Appreciate 0
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