It really does increase power

To date two separate dyno tests have been run with the
Airflo insert in two different dyno facilities and on two different
engines. On one test we used a Demon carburetor
and were getting increases of 7 horsepower. The second
test used a Holley carb and we got increases of 10 hp. The
second was on a 600 hp racing engine and our 10 hp gain
was comparing the Airflo in a conventional street type air
cleaner to a tall racing air cleaner without the Airflo. Users
report improved throttle response and an increase in fuel
economy as well.

How does the Airflo work?

Installing the Airflo

It Really Does Increase Power