Airaid 10-20 Toyota 4Runner V6 4.0L / 10-14 FJ Cruiser V6 4.0L Performance Air Intake System Suspension>Coilover Components It has an open 360

It has an open 360 degree free breathing 9 inch Filtercharger air filter element on top of a stainless steel velocity stack base

Now there is an easy solution

the spring rate has been lowered slightly

windshield inner glass seal

Airaid 10-20 Toyota 4Runner V6 4.0L / 10-14 FJ Cruiser V6 4.0L Performance Air Intake System Suspension>Coilover Components It has an open 360The AIRAID MXP Air Intake System represents the ultimate in AIRAID's cold air induction systems and delivers higher levels of horsepower and acceleration gains for high performance gas and diesel vehicles. Some AIRAID MXP Air Intakes start with a replacement one piece roto molded air box that addresses the shortcomings of the restrictive factory design. Housed inside the air box is an AIRAID premium air filter for outstanding air flow and filtration.