I worked very hard on these tips, they were black when I started. I hit them with 150 grit sandpaper by hand few days ago, then today I hit them with 1,000 dry grit, then 1,000 wet sand. I got a semi-mirror finish. I was going to add Medal and chrome polisher, but I misplaced it and cannot find it at the moment. Altogether it was about 2-2½hrs of labor. This will do until I get dual pipe tips. Enjoy
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