I had discolored chrome on my Rinehart mufflers and found out about Blue Job via posts HDForums. I picked up a bottle at my local bike shop and all I can say is that it worked really well for me. Check out the pics:

Before:



After:



Discoloration came right off without too much effort.

Great stuff, well worth the $9.

Ride safe!

 

It does work. I dropped a shami towel on my hot pipes and burned them badly. The blue job got rid of all discoloration.