So, if I am correct, you have a single NW CAI, 65mm pulley, and a tune? If so, those are very correct numbers. Dual NW CAI, will net a little more, modified intakes, will net a little more, smaller pulley, fuel upgrades will net a little more...so it is what it is. That is why there are so many numbers thrown out there, and each dyno is just a little different than the other. The tune might help your car, but might not do the same for someone else's car. You should be pleased with those numbers.