I took the car to an automatic car wash (w/ brushes) for the first time since installing the spoiler. No problems!
Current: 2011 E92 M3 SSII 6MT w/ Comp Pkg, Conv Pkg, CW Pkg
Prior:2013 F30 335i 6MT; 2011 550i 6MT; 2009 135i 6MT; 2006 330xi 6MT
BMA CCA member