Originally Posted by XCELR8

So, it's a Marauder?

By tune, I mean getting a hand held tuner like SCT and having a person like Ed Clark tune and dyno it. I don't know if Marauders are different than 4V Mustangs, but you can't "chip" those. Keep in mind, however, you'll only need a tune after a 2/3 exhaust system and intake.

I'm sure Car & Driver gave accolades to it's exhaust because it sounded better than the Acura TL they just reviewed, not because it's a good flowing exhaust system.