NOW SOLD : Blue-Job. Thought that would get your attention! A speciality powdered chrome cleaner for removing blueing on your chrome exhausts. Used by bikers for many years. Made in USA. I have 1 new small tub of 14gms. Worked superbly on my chrome buggy exhausts.
•   Blue-Job Chrome Polish has a unique non abrasive, highly concentrated, powder formula. Will not scratch chrome.
•   To remove exhaust bluing and add a long lasting shine
•   Claims to be the "World's Best Chrome Polish"
•   Apply using a damp cloth - a little goes a long way

I will also include 2 used oldish items that maybe of some use : one half-used tub of Blue-Job.  Plus 1 oldish tub of used Luster Lace, wrap it around chrome exhaust to polish it.
£11.50 for all 3 items.
Update : SOLD