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Discussion Starter · #1 · (Edited)
Has anyone changed out the pulley on a 550i? This is a big motor and there has to be an easy way to get a little more power out of it. I've done pulley modifications in the past and was happy with the results. Just wondering if this would work for a stock 550i?
The car is fast as it is but I'm always getting on it so it's starting to loose the excitement of acceleration.
I know what some of you are thinking if I'm always in it with my right foot it doesn't matter what you drive you'll get acclimated to the feeling of acceleration and want more. Maybe BMW should transition to an alcohol blown engines in the 5 series...:thumbup:
 
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