CIWS: This One's For You. 
As you can see from a breakdown of this particular run:
Bone stock, 2:54 PM, 77.54 degree F, 29.12 in Hg, 34% humidity
The STS-V produced 360.99 rwhp and 364.47 lbs torque
Same car, adding a Stage 1 STS-V Intake, now 4:05 PM, temp now 80.81 degrees F, same 29.12 in-Hg and Humidity now 44%
The STS-V produced 378.70 rwhp and 381.36 lbs torque
So to summarize: Adding a Stage 1 intake produced an additional 17.71 rwhp and 16.89 lbs torque. Mind you, we made this much additional power when the temperature was 3.27 degrees hotter and 10% more humidity. If the temp and humidity were IDENTICAL between runs, we would have produced even better numbers.
Thank you and I hope this answers any questions.
Have a great weekend guys!