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Old 10-07-2011, 10:51 AM
Toopskees Toopskees is offline
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Dinan Stage 1 - Should I Do It?

I have a 6-month old 2012 X5 50i. My local BMW dealer is offering the Dinan Stage 1 performance engine software upgrade at a 15% discount (or about $2,550). I am considering whether or not I should spring for this.

I have a couple of questions for those of you with experience in this area:
In practical terms, is there a noticeable improvement in performance with the upgrade?
Is there any effect on gas mileage?
Has anyone had issues after installation?

Thanks in advance for your advice.
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