Airbox mod- 3rd generation explorers

[Buck 5,000+ posts]

Ok I just did the airbox mod on my 03 explorer, I would strongly recommend it.

Basically, the 3rd gen has terrible airflow to the airfilter, just one tiny hole. So what you do is take a drill bit and drill a ton of holes in the lower half of the airbox, which allows more air to be ****** into the engine. I did it and gained about 1 mpg and more low end torque (I would say).

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[Buck 5,000+ posts]

No one else has done this? Explorers must no be very popular...

 

[Bettr n' Revrse 5,000+ posts]

Done it with a Duramax lol