Hezsus
Mr. Truck
Not dead set on magnaflow. I've read many posts that recommended them over flowmaster. Thrush soumds food too, from what I've read. Open to suggestions.
I have a magnaflow 18" di/do with x-over and its got a very deep rumble, it vibrates the soffit on any bulding within 30'
Its too loud for me though (headers, mandrel pipe, muffler dumped) I would think you could put about any muffler on to increase the tone, I wouldnt worry about flow since the rest of your setup is stock.
I had dual flows on a stock setup and liked them, kinda wish i woulda kept them. the magnaflow definately flows way better though.