As long as you're installing it yourself, then you'll be under a $100. If that includes a shop installing it then, it's over a $100 any way you slice it. That said, I've seen 40 Series Flows selling new for as low as $45 here in Ga.
found a super 10 for $62 2.5" Flowmaster 325108 10 Series Delta Force Race Muffler 2.5 in. anyone know what size pipes from the factory these things got?