Yup

cool, I was thinking 3" header DP into the cat out to 3" into the resonator then 2.5" out of the res to a Y then maybe some Borla mufflers

Trent introduced me to some mufflers that I'll be trying out soon. Forgot what they were called again though...

Great concept though, mufflers for highway driving, then when you get on it they have spring loaded cutouts.

Our harsh winters will make short work of those spring loaded cutouts. But I would love to see how those work and sound.

At 100 bucks a pop, that'* a chance I'm willing to take. I'll be sure to get some videos.

Find out if they come in a 1 in 2 out

Everything is built into the muffler, they have single pipe models, and dual pipe models for engines above and below 4 Liters if I remember correctly.

Oh, I remember what they are now. http://www.dynomax.com/mufflers.php?muffler=vt

Don't look like they have one for my car.

:P. I plan on going with the dual version of the up to 4.0L muffler in 3".