Will this fit my truck if it originally had fog lamps?

No. This cover is designed specifically for non-fog-equipped models. If your truck has factory fog cutouts, you'll need the fog lamp version to avoid gaps.

Do I need to remove the original bumper to install this?

Installation method not specified in the product data. Test-fit the cover first to confirm mounting strategy before committing. Likely uses existing factory bolt points, but verify fitment on your truck before proceeding.

Does the chrome finish need any prep or protection before installation?

The cover ships ready to install. Inspect the chrome for any shipping damage before mounting. Standard car wash and wax will keep the finish protected once on the truck.