yes i would get a diferent bottom end in your case if the 4efte is to expencive you could always fit a 4efte bottom end and run low ish boost till you can source a sound engine or get 1 build its al about what your budget is if it was me and you had a mechanic friend then i would get a 4efe and fit your current turbo rods and pistons to the 4efe with a new set or rings and conrod bearings and be done