I have a dint in my exhaust and was wondering if there is a way to get it out myself or if a mechanic has to do it or if it can be fixed at all. the dint goes about a 1/4"-1/2" in and goes from one end to the other and the seal on the right side may be broken and if it is can i weld it? i have the tools to weld just about anything so tools arnt a problem. And if i have to take it to a mechanic how much would it be?