Spent about twenty minutes polishing my exhaust tips with Autosol, fine wire wool and WD40, have to say very surprised, they look great and I hadn't touched them in almost 2 years.
Can't remember where I read to put WD on first to break up the cr@p but hats off to whoever it was because it really helped. Recommend anyone to give this a try regardless off how bad their exhaust looks, mine had small bits of rust but the polish and fine wool along with the WD got rid of it in no time.