+1 DillDawg A friend of mine has them on his VTX 1800 for over 3 years and they look like new. They are nice slip onsThe fat roadhouse slipons wont blue.
If they're new pipes, you really don't need to polish them....just wipe the fingerprints off with some windex and a soft cloth.
If they're used and you do need to polish them...plain old No. 7 polish works fine. Find it just about everywhere.