I had a Borla turbo on my car when I was a kid and ten years later it still shined up like new. The catback I had on my CC 2.0t fit perfect and sounded great.
'98 M Roadster and '13 M-Sport 328i 6mt
E36/7: Dinan/RMS stage 2+ blower@13lbs of BOOST! 18" BBS LM's, too much more to list
F30: ForgeStar F14 19's summer-OZ Superleggera 17's winter/Rogue Catback/Integral Audio/AFE intake scoop/BMS stage 1