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Originally Posted by 2013 335IS
Just purchased this, was wondering if there is a JB4 or any other chip out there for my engine yet? Also is my engine still considered the N54? Thanks.
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I know the '12 335is was the N54 and assuming the '13 didn't change it should still be. There is more tuning out there for the N54 than N55 right now (obviously since it's been out for longer).