2019 G63 "Increased top speed" +$2200 option
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2019 G63 "Increased top speed" +$2200 option
Limited 137 mph top speed can be increased to 149 mph...
-does anyone think this also affects the acceleration? (I prefer acceleration over top speed)
-can this be added later at dealer?
-hopefully RENNtech ecu may provide this in future...
-does anyone think this also affects the acceleration? (I prefer acceleration over top speed)
-can this be added later at dealer?
-hopefully RENNtech ecu may provide this in future...