I looked up the quiet flow, and I think that's what I'll install...

I take it you've heard it. It does sound "beefier" than stock?

 

The QuietFlow has a lower tone
but also still has a 'Helmholtz Resonator' cavity built in
to kill off 1500 to 2500 rpm 'drone' noise at cruising speeds

on the downside it is aluminized steel, not stainless steel
and won't last as long

it is much lighter than the oem muffler

http://www.tenneco.com/news/press/ar...1021999_1.html



the biggest QuietFlow for the Corvette
has the outlet fittings to be made into a dual exhaust
if you prefer that look:

http://www.corvettesouth.com/corvett...de-424002.html