Yes I have numbers!! They are not mine, but they are acurate!! Ill post the link for the N/A numbers in second! N/A it is not worth it at all, but if you are running any spray or nitrous, definatly worth it! There is a guy over on MF that did before and after dynos on a procharged car. He lost 3 or more psi of boost, but he made the same power. Just for that fact making the same power with lower boost levels shows that it flows more air and is a more efficent design. If you have any more questions just ask me! I have been researching this thing since I knew it was coming out!