OK, this seems like a dumb question, but I'm going to ask it anyways. My trike came with Rinehart exhaust. I think they are a little loud. So I ordered a set from American Custom which has a couple different baffle options. My old exhaust clearly has a left and right muffler. There is an indent that faces the inside on each of them. The new ones have the indent on the same side so they are exactly the same. You would never actually see this after installation. So, I guess my stupid question is - does this matter? Is there a difference in the factory exhaust between the left and right muffler?