there is definitely some kind of gain. hesitation is gone.throttle response on the highway is about 100x better. sorry no money for a dyno. thanks for all the kind words. if anyone wants to dyno this for me please let me know i am dying to know how much this thing makes.
Nice work. I've thought about doing the same thing but hate to cut the airbox, and I don't know anything about the maf sensor.
btw, here's what I did to my '91 civic. I remember both the tubing and filter (yes, Auto Zone) being around $20 each :dancing: