Here's a quick video comparing the Roush axle back to the Hushpower axle back on my car. I have a Lethal Off-Road X pipe too.

The Hushpower has more drone on my car, the Roush has some, but much less.

I like the sound of the Hushpowers better, so I put some Damplifier Pro in the trunk, and it tamed the drone.

The drone is still there, but it is livable now. I only put on 10 sheets in different spots in the trunk, I didn't cover everything. Didn't want to soundproof as much as stop the vibration to get rid of the drone.

I didn't ecpect it to work very well, but it worked surprisingly well.

I may add some more this srping, but for now I'm done.

I'm putting the Roushes up for sale. PM me if interested...

http://www.youtube.com/watch?v=F5iwNZ7X1IQ

 

Awesome!

How much did the Damplifier pro cost and how much did you need? I need to get rid of some of this drone as well

PS: Got a little squirrely on one of those take offs?

 

Yeah, at least on that video, I like the hushpower better on the 5.0.

Still haven't heard a better V6 axle-back than the Roush though.

 

where u from? interested in roush

 

Nice video! BTW, looking at your cold start ups, I noticed the prancing pony in the faux gas cap. Is that stock with the GTCS?

 

I got squirrely on most of 'em! (The all seasons don't hold so well below freezing...)

I put on about 9 sheets (12 x 20) altogether.

Doesn't look too pretty under the carpet, but then again, who cares?

I bought a full trunk kit (about 20 sheets - 36.5 sq ft) and a wooden roller for about $160, but you could easily get by with half that amount. I ordered from second skin http://www.secondskinaudio.com/index.php

I have the convertible, so I have an extra sheet metal tub inside the trunk that I had to cover also, and that took about 2 1/2 sheets by itself.

My goal was to dampen the vibration rather than to soundproof and they say that 25% coverage on a panel is enough to do that.

 

It sure is...