How quickly does bronzing occur?

[uscgmac_imp]

Not an issue at all. The coating changes color with time. The standard is a single wall pipe with a bronzed coating. The coating will discolor. This happens on all head pipes unless its a double walled chrome dipped pipe like on the delux. It has nothing to do with abuse or anything else. Some cleaners or solvents may help restore some of the uniformity of the coloring but not nessessary at all. The only thing that could really change the coloring and make the pipes look cooked is if someone did some super mods without any aftermarket fuel managment and ran the bike way too lean and hot. I highly doubt it. The pipes change colors and thats pretty much the extent of it.