you will be very happy with the engine.. its great.. get the 2013 pipe, i have yet to try the 2057.. but it sounds great.. definitly a head turner.. engine is easy to tune, i use the standard button, never tried running turbo.. give the engine a full gallon before you hold judgement also.. i did the heat cycle method on mine.. and mine ran pretty warm for a while.. and didnt seem to make alot of power.. but after the gallon mark.. it finally broke in.. and watch out.. its wicked fast.. holds a great tune.. just an hour here, or there.. depending on the track i am at.. and im in.. gets well over 8 minutes to a tank easy at race speed.. during practice.. i get plus 9