Spray the rest of the muffler body black. give it a more finished look.
Not hating on ya bro..I just recently installed GT500s on mine also after trying almost everything else out there except Borla. I just noticed while riding behind another GT that I could see all of the muffler while going down the road, the distance and angle of a following car you can see those badboys. So I went home removed my ABs and shot them with 3 coats of high temp engine paint. I did leave my tips polished but the black mufflers now blend and disappear under the car.Thanks guys, I love them.
As far as the paint job goes, You have to be at the angle that the camera is at to see the unpainted parts, so I really couldn't care less right now ... lol