i gave my car a little look over and noticed a hole in my muffler about the size of my palm. Can this be patched or should i go ahead and get it replaced? also, would it sound weird to have to different mufflers? i plan on doing the whole exhaust soon but i dont have the funds for it at the moment. Or will the hole be ok for the time being? sorry, in new at this, thanx in advance for any help.