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      09-25-2014, 07:52 AM   #80
Mike.
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2013 BMW 335xi  [10.00]
Quote:
Originally Posted by hassmaschine View Post
isn't the 330i exhaust slightly different too?

there's so many factors, maps and curves that are different between the two, it's not that surprising. I really doubt many of the tuners have dug too deep considering the big gains and money are in the N54/N55 tunes.
well that's where you come in
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