Well, the cat is staying. The diameter of all the pipe is 2.5". Shouldn't be too loud or quiet. I think it'll sound pretty dang good wiht the 318.
I think the glass pack is just the ticket.
I think it'll last at least 3 and a half years until I finish high school. When I go to college we planned on me taking the family '04 accord.... That is until I build an electric car.
The one thing pushing me towards a glasspack over a flowmaster is price. A glasspack is only 20 bucks. I don't want to spend 100 bucks on a muffler even if it's extra badass... I'd rather spend my money on other things. You know, my projects. Rc, Spud guns, electric bike.. etc.
To me, putting money into a vehicle is just like fireworks. They're fun as hell, but they money you spent on it just burns up.