So yesterday I decided to get a quote on having my exhaust replaced. It is a little worn and some of the mounts have broken. It is not in bad shape but I want to let it breath a little also. Anyway I was quoted 225 for a 2.25" exhaust from the manifold "donut" straight back with a glass pack muffler. I am looking to see if that sounds about right and if I am going to large for a slant six?