Originally Posted by 4sevens.com
Mine are fine at 10k miles. The trophies look as good as new after light washing.
We have had Trophy Sport kits on our 335i for 30K miles, 135i for 15K miles and now the 1M for about 10K miles. Three different kits and no issues to speak of. Our washing process is quick and easy with just car wash soap and water with light to medium water pressure(high pressure will actually scratch painted finishes). Wash your wheels often and NOT use harsh chemicals.