You're contemplating running 33s on the road with a 2.5L? Have you upgraded the gears yet? Personally, if I was running a 2.5 with stock gears, I'd definitely keep the daily tires at 31s or smaller. Offroad you can use low range to push the 33s around. Also, I would try to keep my offroad tires light. Super Swampers (including the trXus) are a very heavy tire.