Just another update, previously I stated that smoke was cut in 1/2, but its got to be more than that. Yesterday it was warm, around 70 degrees, and a car in from of me slows to turn. I downshifted and lets rpms drop all the way down to 1000 and the truck pulled from there with not so much as a puff. This week its been warmer than its been all year and I haven't seen smoke for days