O.K. IF I GO WITH 1.60 OS IS THERE SOME SORT OF PIPE THAT I CAN REACH THE NEW DB RATING AND A LITTLE MORE HP LIKE A A CANASTER OR SOMETHING. I DONT MEAN TO SOUND LIKE IM SAYING ANYONE IS WRONG BUT I WANTED A GAS MOTOR TO SAVE ON $ ( FUEL) BUT I DONT WANT TO GIVEUP ANY 3D PERFORMANCE.GUESS I WANTED THE BEST OF BOTH WORLDS BUT NOT GONNA GET IT.SHOULD HAVE GONE WITH BIGGER PLANE.TOO LATE!!!