Quote:
Originally Posted by VirtualGuitars
It will not void your overall warranty; however, BMW has the ability to see evidence of it in the diagnostic logs - even if it’s removed before taking it in for service. Unless you have a blown motor or other engine or drivetrain-related problems, it will largely go unnoticed. On the flip-side, you will have a hard time getting a blown motor replaced under warranty if they see evidence of this modification.
This is a pretty well established product, so I’d say it’s a low-risk mod.
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That’s what I was thinking, when I first was thinking about a race trip I was hesitant, but the 4.4L V8 has been in the BMW wheelhouse for a very very long time. The only thing new is the added battery, but that has no bearing on the motor being tuned so I’d say it’s a pretty safe bet