I thought this might be of interest to you. I just had my VAFC Neo installed in my car and dyno tuned a few days ago. gain of 10-18whp. it was a little different each time they ran the dyno....I have a dyno sheet that shows proof of a 10whp gain. tech said it ranged from 10-18. worth it if you ask me. Plus the monitering tools are cool. my evaluation of its performance. I really dont notice much differance until I get into the top end (3k+), but the dyno showed a 4-5 hp increase on the beginning of the curve, up to 10 in vtec. once I get over 3k I can really feel a differance. my vtec was set at 5k, that helped a lot too, thats right, its better than the setting from the factory boys and girls...straight up. could be the extra hp. overall the cars powerband feels smoother, stronger at the top, and just plain faster. Vtec pulls harder. One other cool thing, the fuel is trimmed down .1-6% Seems like the harder I push on the gas the more fuel the vafc trims. I have noticed that I am getting better milage.

More whp, better milage, cool monitering tools, lower x-over with power gains...

proof, the VAFC is not worthless...period. in fact, I recommend it if you dont plan on boosting or doing a major n/a build.