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      03-27-2010, 01:59 AM   #19
archwerks
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Drives: x6 3.5i VR
Join Date: Jun 2008
Location: canada

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Test the testers !

Every "Standard" or "Reference benchmark" needs to be qualified by consistent scientific repeatable/reproduceable results & methodology.
There may simply not have been sufficient owners of x6's who volunteered their vehicles to Dinan for tuning, so Dinan cannot claim they know everything about the x6's re-tuning.
I'm sure there r enuf 3 series w/ the N54 engine, (same one in the X6 3.5i), that has been successfully retuned by Dinan.
Just because it's the same engine, does not mean it may not have different proprietary tuning software in another model.
Ditto the 4.4 L v8 tt in the x6 5.0i

I surmise there r sufficient liability issues, in light of recent issues w/ Toyota vehicles, for BMW to tamper proof the ECUs in their vehicles..thus, aftermarket tuning becomes more difficult.

http://www.dinancars.com/bmw/technia...ern-bmw-engine
Appreciate 0