I spent about 40 minutes total each tip. I followed Last5oh method as per this 'If your existing tips are stainless steel they will take to polishing well.
I used 5 grades of sandpaper ( $1@x5 = $5 total) and wet-sanded the tips.
Started with 80 grit then 400, 800, 1200 and 2000. Finished with metal polish' but also included 200 grade after the 80. As he said keep the water up to it as you go.
Apparently all oem exhaust systems are stainless steel so for those who are anal you theoredically could do the whole system up to the engine

Good luck, post pics when done.

Foomph

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