Newbie here...not very mechanical either, so I hope these aren't stupid questions...

I have a couple questions as I'm looking at having a Flowmaster added to my Tundra. I understand the concept of dual in/dual out vs. dual in/single out, but is there any difference in sound or performance regarding this? Also what is the difference between the 50 series that I've been reading so much about compared to the Super 40 (or whatever it's called)?

Basically here is what I want: I want to hear the truck fire up when I start it, followed by a low, deep rumble as if awaiting take-off. When I step on it, I want it to be a deep, ballsy roar so that I can be heard coming and going. At cruising speed, I want to be able to hear that I have a non-stock exhaust, but for it not to overpower the inside of the cab (not necessarily quiet, but not blaring). Any comments/suggestions would be greatly appreciated!

Thanks much!