Well, it'* been a week since the mufflers got installed so I figured that I'd post a follow-up post. I think what describes the sound now is "european." I had someone mention to me that it sounds like a European luxury car. It'* not too loud, and it'* not too quiet. It sounds like it could be a stock exhaust on a German car.
I swear it sounds better than it does on these videos. I don't think my old camcorder has the best quality, that'* for sure.. Good thing I left the traction control on though.. the tires were spinning pretty good on the first clip! (until the traction control kicked in and stopped it.)
The first clip is WOT from a stand still up to 6,500 RPM. You can hear how loud it gets near redline. The second clip is starting off at 1/4 throttle, then ending at 1/2 throttle. (got up to 3,500 RPM max)
Last clip is WOT coming towards the camera up to 5,500 RPM.
Interior video. clip one is again, full throttle from a stop. (I timed the 0-60 at 8.2 seconds today.) Clip two is full throttle from 20 MPH all the way up to 95. The camera likes to amplify my interior rattles. The rattle is from my amp rack in my trunk. I still haven't fixed it. Other than that the interior is silent.
This clip shows what normal/slow acceleration sounds like. Both shifts were below 2,500 RPM. The exhaust is pretty loud at low throttle all things considered. you can barely hear the intake whine over it. (northstar engines have a tendency to have a whiny intake noise.)