I had my r33 gtr engine rebuilt and after it was rebuilt i took it to a local tuner....
long story short he recommended i upgrade the CPu and fuel pump... 5k later come out tuned sweet as
however after about 1 month it seemed to ferk up again took it back to tuner and he tuned it standard even know i have larger turbos.
the boost twisted the bolts and ferked the top end? i think lol
now he has tuned this as a standard gtr is he at all responsible??
he had a problem with the 20 pound actuactors? or something