Recently, I tested AEM's Brute Force intake system on our '07 Jeep Wrangler. The Jeep's 3.8 V-6 does very well for itself but, like any vehicle, could use a little more power, especially while trying to spin the larger-than-factory tires. The JK's factory intake is slightly restrictive: The intake port opening is almost pushing into the inner side of the hood. I'm not one to second-guess Jeep engineers though, and I'm sure they had a good reason for designing the factory intake like this.
The JK Brute Force intake kit from AEM comes with everything you need for complete installation, including detailed instructions. | 
The Jeep JK's factory intake system is extremely simple to disassemble. We loosened the two hose clamps, disconnected the IAT sensor, and simply popped the airbox out of its mounts. | 
The factory intake port is almost up against the inside of the hood, restricting airflow into the engine. |
Be extremely careful when pulling the AIT sensor out of the factory intake tube; it is fragile. Squirt a little WD-40 on the outside of the sensor and use a flat-blade screwdriver to pop it out of place using different points of leverage around its base. Don't force it, and make sure you don't damage the plastic seat. | 
The new shield bolts to the two factory holes of the old airbox mount. I ran a piece of tape across the bolts to hold them in place while I fastened the nuts and washers below. After that, I removed the tape. | 
These are the only tools I used: a flat-blade screwdriver, tin snips (for molding on top of shield), 1/2-inch and 5/16-inch sockets, a 7/16-inch open-end wrench, and the tape to hold the bolt heads in place. |
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