Does version 2 give more hp/tq?
And do you have to buy version 1 then upgrade to version 2? Or can you just buy version 2 without buying version 1?
"Version 2: Same engine performance software as Version 1, plus an Auxiliary Water Cooler and an Enhanced Radiator Fan to reduce the higher thermal stresses on the engine during extreme driving."
You can just buy version 2. (currently 1199.99 until the end of 2011)