Exactly. Its the parts on the car that make the power.
Like people that rebuild a motor and re use the stock turbo and wonder why it makes the same power as before but they just spent 6k on the motor.
But i agree that deiveability can be gained from a more precise measuring sensor ie AFM,
I tried some NISMO copy AFM's 2 weeks ago, they were very coarse down low so idle and low load was very erratic, wanting to stall and stumble.
But if the R35 GTR afm can improve on the already proven Z32 AFM. Would be good to see