I really doesn't chip as easily as people think. I did my front grills last year and hasn't chipped yet. Also did part of my bumper and left it on for a week with no chips. I think its worth a shot.
Montego Blue E90 335i
7" VRSF IC | OFT Tune | DCI | RB PCV | Secondary CAT Delete & CYBA 3.75" Tips | M3 Front | CSL Trunk | 19" LC Dyna Wheels