Exhaust tip yellowing
 

My exhaust is getting yellow at the tip. What could i do to get rid of it and have it back to its clean look?

It would help if you replaced that broken head gasket.

A car running perfectly clean would have a metal-colored tip. My cars have all had black (very light soot) tips. If the INSIDE of your exhaust tip is changing colors, that points to possible engine problems.

Is it the inside or the outside of the tip? Is this a new phenomenon?

buy a can of nevr dull its the best value for 6 bucks should clean it right up