The Michelin P4s's on the PP2 didn't do much in 6" of snow...lol.. And my old 7.3 Powerstroke doesn't start too well when it's -20 and I can't plug it in.. Priorities definitely change..
I completely agree about the exhaust! I've listened to a bunch of clips, and think I might end up going with the Magnaflow 19515. It's been a while since I drove an auto, and it's taking a bit of getting used to again!