Arrow must point in the direction of engine airflow
Do not install backwards, like the fake news people.
Air Filter Side
Install by the narrower side, secure installation.
Install by the butterfly valve, secure installation.
Install tabs can help secure your installation, especially when there is a little bit of wiggling.
Fold out the install tabs using a hand tool and "twist in" for a secure install.
Double check the clamp for "air leaks"
Reset your average MPG calculator to find out how many extra miles you are driving.
Move the units around in the air intake system