Ditto, I used
RejectBaby's instructions as well. He did an excellent job on his writeup. Here are a few of my tips,
1. Use a portable drill and circular hole saw to widen the hole by the battery. Make sure that all drill batteries are fully charged.
2. Free up the tight fit of the negative ground cable by moving it higher up on the available hole left over from the airbox removal.
3. Use a plastic retainer clip to plug the hole on the intake for the Intake Air Temperature sensor if you don't have this sensor on your car.
4. The filter can be installed from underneath the car without having to pull back on the entire splash shield.
5. Use petroleum jelly to help position rubber-to-metal parts together.
6. Do an ECU reset after completing the work.