My honda shadow sabre the pipes trun blue - 2001 Honda VT 1100 C2 Shadow Sabre

Motorcycles come standard with double wall pipes. The inner pipe turns blue and the outer chrome pipe stays nice. In a stock exhaust system you rarely get blued pipes. Unless, you put on your choke, start your bike, answer the phone, and forget your bike is running (or you start driving and just forget to turn off your choke.). Then you will blue your double wall pipe. Bluing is generally caused by too rich of a mixture or fuel burning in the exhaust pipe. If you put on an aftermarket pipe(usually single wall construction) and did not coat the inside of the muffler pipe, the pipe will generally blue the first time you drive the cycle. An old dealer trick is to replace blued aftermarket pipes with new aftermarket pipes (makes the bike look great on the showroom floor). Again if they don't coat the inside of the pipe with exhaust paint or a special coatings usually about $35 the pipes will blue before the customer gets home. If the bluing is mild you could try a product called" Blue Away"that might help, but should not be used regularly as it takes off a little bit of the chrome each time.