That seems about right they tried everything to get the whp to around 300 even added race fuel and ran a full tank tuning it I guess Nissan did a good job in Japan with this engine and tune.
They said if the can get into the VVel part or the motor they would see a greater increase but still working on it. I also had my 2007 Titan tuned by UpRev and they got about 25-30 more whp so I know it works. the Titan is a different truck now.
I can look for my tune and send you a copy if you like

Hey got a question when you did your uprev tune how much of an increase did you see. I have F.I. CBE & HFC's, and Injen CAI and I only saw an 8 whp and 6 Trq. Is that about right or was my tuner just lame and a waste of money. I took it to Secret Service Auto in Houston.