THE AIRBOX MOD: Tools: 3" holesaw Small Drill bit Phillips screwdriver Dremel cut tool Material: 4 SS screws .025 sheet of aluminum (cut out of 8"x 18" sheet) Shop vac filter. 1. Remove Airbox from Vehicle 2. Locate the side of the filter box facing the headlight assembly. In the lower left corner, remove the 3 center ribs on the outside of the box with Dremel. 3. Drill a 3" hole into airbox between the two remaining ribs. 4. Cut a piece out of the shop vac filter to fit area where the hole is and between the two ribs you didn't cut out. 5. Cut the Aluminum sheet to the same size as the shop vac filter and drill a 3" hole in the middle. Try to match the hole location in airbox. 6. Drill 4 pilot holes and attach to airbox using SS screws. Recommendations: 1. Use material that won't rust. 2. Alternate material-Corragated metal (if you can find it) 3. Reason I chose shop vac filter? If it can keep water out of a shop vac motor, it will keep the bugs and water out of my K&N filter.