I do not have a Redeye, but had my HC and other supercharged vehicles. I am assuming you are referring to the diagonal lines crossing the belt where the words / logos are, and not the lines / discoloration that runs along the belt in the same plane as the words. These, the discoloration in the plane of the belt, looks cosmetic to me (but then as noted, I have not used the Redeye Gates belt). The diagonal lines are more concerning to me. I suspect, given their placement, that they are an artifact of the manufacturing process (perhaps when the logo is applied / stamped / molded). Were they there when the belt was installed? Was it done for you, or did you do it yourself? If you bought the belt, it was pristine, and once on the car it has those lines / scratches I would suspect the installer.