Long story short. Didn't realized my aftermarket was mounted so it was resting on my bumper. In turn it has melted my bumper and looks fugly, I have since put the stock on and am looking for a company that makes something to cover it up.

Would the jdp rear diffuser be an only option?

 

Bump it up top

 

Bump up top.

 

just an idea:

trace the exhaust curved section of the rear bumper onto piece of paper (to make a template).

Using that template, cutout a piece of sheet metal in the template shape.

Grind/file edges for a smooth, professional look.

Using a soup can or something of the same curvature as the exhaust section of the bumper.
Use the can to roll the sheet metal into the same curvature.

Spray down with brake cleaning fluid to remove any grease.
Spray with high temperature paint (couple of coats).

When dried, rivet or bond to the bumper.