The Light pro guys cannot run intercoolers but the euro tractors can. The
LP tractors engine and rearend must match factory option to the year of sheetmetal, the euro guys obviously, not the situation.... and there is a reason a motion to make a turbo limit on the class. A certain 4.6 struggled with reliability trying to hang with the new larger chargers. Although the ones I saw let go, were covered and replaced, but the engine builder had something to do with that being a common denominator. Which impressed me, so kudos to them.... back to the truck rules as Jason stated about 3.4, which will actually be 3.2/.25 or 3.3. Which allows some of the guys who had good parts in 3.0slotted to compete.