I have an 06 1100 vstar and have been noticing some rusty looking splats on the lower left side cover and have been hearing what sounds like an exhaust leak but couldn't find it. Today I found it, there are 2 chrome tubes coming from the heads and over to the left side. They connect to 2 rubber lines. Does anyone know what these are called and are they for emissions or what are their purpose? The one from the front head has a small spot rusted thru and that is my leak! Thanks in advance.