If it's light surface only, you can get it back looking close to original. For satin stainless (not BSTS), go to the body shop supply store and get the 3 color steps of scotch pads. Red= course, grey=medium, and white =fine. Depending on the severity of the scratches, you will need to either to start with the red or grey and if the grey is to a sheen you like, then finish with grey. If you want it a litter brighter, finish with the white pad and you can even use Flitz polish with the pad. If it's too bright when you're done, you can always go over with it in grey again to get a more matte finish. Test a spot under the grip panels. Polish in a back and forth motion and not a circular motion. Don't use department store scotch brite pads. They're not designed for polishing and finish work.