First of all, i would like to say welcome to CEG. Alot of the answers you seek can be found when you use "search". But, as for the exhaust part, i've got a 2.5L SE contour, and i'm going to be doing that type of exhaust with only a single muffler. I'm actually going to have it installed on Friday. I'll be glad to let you know how it goes.
Ren
Edit: our SVT contours have that "dual" type of exhaust. Those usually sell for about $150 used or so.
