YOU WANT THIS SETUP...
I am a very picky person and what I was looking for was a mix of Cobra and European style 6 or V8
I had gone the route of Flowmaster Cat-Back...It was loud and sounded good ONLY when you were at WOT...Other than that, it was the drone I didnt like.
There are fans of this setup, so Im not going to bash the hell out of it, but I think I know what you are looking for.
Dont worry about losing anything by going a bit bigger on the exhaust, I never missed a beat and actually seemed to gain power, no loss of boost and I was using stock manifolds.
I have custom downtubes from manifolds that move the cats back a little, the cats are Magnaflow Stainless 2 1/2 (reduced in the front for the tubes that mate to the manifolds), but 2 1/2 out to dual 2 1/2 inlet Magnaflow 18" resonator, out to 1 3" outlet and all the way back to split into 2 1/2 pipes into 14" (i think) Magnaflow stainless mufflers mounted at a slight angle with tips.
The sound when you are just nosin around town is nice. Not farty or ricer and actually from inside the car it sounds like a V8. Outside it sounds a kin to what I have heard on the V8 Lotus Esprit. I live near an exotic car lot and hear these things all day long.
When you step on it, it just has a sound of its own. It can sound like an 8 with awesome, smooth reaction or like some kind of exotic car. It does not sound ricee, farty or anything like that.,
The drone at cruising is so low that its actually appealing instead of annoying.
The car will be loud when cruising, but at idle it is baby quiet.
When I start the car from inside my house, the windows rattle for a second...
he he he...
has good prices on Magnaflow stainless stuff, but ultimately you may get a deal from the place you have it installed if they carry such items.
If you dont want to go stainless, the price is even cheaper.
Installed my entire manifold back system was under $1000