Quote:
Originally Posted by JimMag
I just got a 2021 M550i a couple of weeks ago . Im waiting for the Dinan tune to be ready, as Im worried about warranty issues .
I did bring it to Atco and ran a 12.20 @119 mph. I only had three runs , Track was crowded and there were several breakdowns most needing a cleanup .Next time Im looking for high 11s.
If it wasnt for the Warranty I would ,get a non Dinan tune, remove catted down pipes, change exhaust and add a fresh air intake . Id like to get it into the 10s
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Look up Carbahn. Steve Dinan runs it, I've heard not so good things about Dinan after they sold out to VC's.
They also retain the factory warranty and crank out wild numbers.