here was my dyno results with just the gen 3 cai...dont have a base line to compair it tho. I defently felt a difference, thus making it worth it.
As for my EvoX theres a 5-7whp (dyno proven) increase between the SRI and the CAI...$250 difference. So in other words, if you are planning on squeezing every hp you can, its worth it. If you are on a budget, get the SRI.