COBB GTR R35

Anyone here familiar with SD kit tuning GTR R35 ?

Need to understand why my TPW is higher than anyone else?

Is it because i use sd tuning ?

How much power is the car making?

It's been a while since I switched from Cobb to Motec, but I remember the TPW being pretty high with the car turned up. I expect it can be scaled somehow, but I never experimented.

making 510awhp at the moment on mainline dyno 1200

stock boost

sorry been busy arround