as you already know, i will be testing the 63 cast vs. the 64.5 fmw .. should net drastic results ( more than 5-10 horse) if bw's results are reflected. i want the spoolup of the 63 with the power of the 66 . this will be on my 6.7 . apparently the fmw wheels have a wicked sound too. coming from the uncorked stock turbo i will like that alot. thanks again for the help jacob and mpd.
oh they sound delightful!