Owner's Manual
Page 333
... surfaces on your vehicle. Chemical Paint Spotting Some weather and atmospheric conditions can cause a color change in the paint job causes this, Chevrolet will repair, at no defect in titanium exhaust system parts. This is normal for a titanium surface. Titanium Exhaust System (Z06 Model) Time and high performance driving conditions can create a chemical fallout.
... surfaces on your vehicle. Chemical Paint Spotting Some weather and atmospheric conditions can cause a color change in the paint job causes this, Chevrolet will repair, at no defect in titanium exhaust system parts. This is normal for a titanium surface. Titanium Exhaust System (Z06 Model) Time and high performance driving conditions can create a chemical fallout.