I just installed a single Flowmaster, not really sure wich model, but it sounds pretty good, I don't have dual exhaust holes yet and the guy at the muffler shop said it might be more likely to make the raspy popping sound with duals. I will probably go ahead and get duals when I get a body kit. It is pretty loud though, especially if I am running about 80mph on the highway, there is a low resonance inside the car. I am thinking of installing some dynamat to deaden some of the sound.
I am thinking that if i dual it out it may deaden the sound some since there are two mufflers instead of one, any thoughts on this subject? Anyhow, here is the clip, if it works.
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05 Mustang V6 Satin Silver w/ Lt Grey Leather
Single Flowmaster, K&N Air Filter
Arelli Jovan 18"x9" Wheels
Metallic Black Stripes INF