After trying to clean the Grill after dis-assembly, as you can see in the first picture......the cleaner I used ate thru the Annodizing and it still didn't get all of the dis-coloration off the grill.....
I sent the upper and lower Grill sections out and had them......Stripped......Bright Dipped......and Re-Annodized......just got them back and re-applied the flat Black paint per factory......they turned out pretty good.....check out the pic's
Before
After
Ken