Hey everyone I'm considering the flowmaster super 40 muffler (the newer design not the older one) as part of a custom catback using the stock tailpipe but my only concern being that my truck is a daily driver is how loud over stock it will be. I love the sound of other trucks/cars with that muffler as they pass by but the last thing I want is an interior resonance that will remind me of how loud my supra was before. The good thing about the hks exhaust I had on my supra was that above 60 mph it was dead silent, sorta like how the stock dynomax is slient at fwy speed/cruising. So I'd hope the flowmaster could be the same (I drive about 70 miles a day on the fwy). Researching the old posts on this forum supposedly the newer super40 is quieter than the original, but how quiet is it really? Wake your neighbors when you're leaving early in the morning or just right? If not the flowmaster, (though I prefer the classic sound) how about the spintech 3" catback? Louder?