What year's the car? Warranty? If that stuffs still in tact then why you worried bro. Unless you're supercharged or gotta tune to worry about.
Current: 2013 Fire Orange E92 M w/orange stitching
Previous: 2011 Jet Black E92 M - 2006 325xi E90 NON-M - 2009 Volkswagen 2.0FSI MK5