Was out wheelin' near Lake Arrowhead, CA this weekend and crushed up the exhaust pretty well. It's crushed in about half the diameter, that is to say the diameter is now half what it was for about a 3" section of exhaust. Is this something I should be concerned about? I thought i might take it to an exhaust shop and have them weld in a new piece of stainless, but not sure if I even need too. Certainly can't tell a difference when driving.