alright, ive noticed my car ahs been getting louder and louder, and im starting to wonder if i will need a new muffler soon, its also doing this weird putputput sound out the back. im considering getting a custom exhaust. There is an exhaust shop not to far in Manchester Lous Custom Exhaust. I have heard a lot of good things about them. Im just wondering, has anyone felt a gain in anything from a custom exhaust? or should i just get a normal replacement/ patch.