Hypothetically, if someone wanted to remove the intake charge air line (#12 in diagram below) and reinstall, would they also need new seals (#13/14)?

http://www.realoem.com/bmw/showparts...88&hg=11&fg=40

And does anyone have experience with this removal/install procedure they can elaborate on?

__________________
2011 335d Sport Package/Cold Weather Package

2004 Ram Cummins with lots-o-mods
1990 YJ Repowered with modified Cummins B3.3T