I plasti dipped mine first to make sure I liked the look. I did, so I had OEM shadowline installed. That's really the only way to go IMHO.
2008 E90 335i // Black Everything // photos
COBB tuned / QTP e-cutouts / Helix FMIC / cp-e DCI / AWE BOVs / Black M6 wheels + Toyo Proxes
(and yes, I am a girl)