I usually use a good quality metal/chrome polish to shine up exhaust tips, but the AMG exhaust tips are pretty scratched up on my 01 ML55 AMG. Im pretty sure these are chrome tips, and i tried some 2000 grit sand paper on a small section to see if it would leave scratches and it looks like it scratched it up a bit so I didnt go any further. Is 2000 grit sandpaper save for chrome tips? If not what can I use to take out scratches from my tips? Thanks in advance guys.