Will this cover work if I still have the OEM parking sensors wired in?

Physically, yes—the cover mounts to the same factory points. But the sensors won't function because there are no cutouts. If you need active parking assist, swap to a cover with sensor holes or disable the system at the module level.

Do I need to remove the old bumper cover or can this go over the top?

The old cover comes off first. This cover is a direct replacement—it bolts to the same mounting points on the frame and supports. Plan on about an hour for a clean swap if you're working solo.

Will the chrome finish hold up to road salt and winter conditions?

Chrome is durable but not immune to corrosion, especially in high-salt climates. Regular rinsing—especially the underside—keeps it looking sharp. Touch-ups are easier than refinishing, so keep your wash routine consistent.