1997 through 2006 Jeep Wrangler And Jeep Tj 4.0l Air Intake Installation

This K&N air intake system is designed to increase vehicle power and acceleration by reducing restriction in the intake path. The 57-1514-1 air intake has received a CARB EO number and it is street legal in all 50 states. This air intake system fits 1997 through 2006 Jeep Wrangler and TJ models with a 4.0 liter engine in addition to other vehicles identified on the K&N website or catalog. K&N power testing showed an estimated power gain of 12 horsepower at 4623 RPM with this air intake installed on a 1997 Jeep Wrangler with a 4.0 liter engine. Actual results will vary depending on the condition of the vehicle, mileage, weather and other variables. With the air intake installed we ran the vehicle on the dyno to test the sound comparison verses the stock intake. The intake kit includes components that have been designed or matched to the needs of these vehicles to produce a safe horsepower increase. Detailed installation instructions are included with this kit. The tools needed for this install are shown. 1. Turn off the ignition and disconnect the negative battery cable. 2. Detach the crankcase vent hose from the stock intake tube. 3. Loosen the hose clamp on the intake tube at the throttle body. 3a. On vehicles equipped with temp sensors, depress the temperature sensor electrical connection locking tab then pull on the connector to disconnect the connection. 4. Release the 5 over center clips that retain the airbox top to airbox base. 5. On vehicles equipped with temp sensors, lift the temperature sensor-locking tab while twisting the sensor counter clockwise to remove the sensor from the tube. 5a. Remove the sealing o-ring from the temperature sensor. 6. Detach the intake tube from the throttle body and remove the entire upper air intake assembly. 7. Loosen and remove the 3 nuts that retain the airbox base to the inner fender apron. 8. Remove the airbox base. 9. Install trim seal onto the heat shield. Some cutting and trimming will be necessary to achieve best fit. 10. Attach a rubber mounted stud provided to the “L” bracket using the hardware provided but do not tighten completely at this time. 11. Loosen and remove the upper radiator shroud retaining bolt. 12.Install the “L” bracket using the bolt removed in the previous step. 13. Install the second rubber mounted stud into the lower airbox mounting point using the hardware provided. 14. Assemble the saddle and “L” bracket using the hardware provided. 15. Attach the saddle bracket assembly to the heat shield using the hardware provided but do not tighten completely at this time. 16. Install the heat shield assembly. 17. Secure the heat shield to the rubber mounted studs using the hardware provided. 18. Attach the silicone hose to the throttle body using a provided hose clamp. 19. Install the K&N intake tube. 19a. Position the temperature sensor electrical connector next to the K&N intake tube for the best fit then mark the location to be drilled. 19b. Remove the K&N intake tube from the vehicle and drill a 3/4” hole at the position marked in step #19a. Next install the provided grommet into the drilled hole. 19c. Install the temperature sensor into the grommet. 20. Secure the intake tube to the saddle bracket using the hose clamp provided. 21. Tighten the hose clamp on the silicone hose at the intake tube. 22. Detach the crankcase vent hose from the vent fitting on the valve cover. 23. Attach the vent hose provided onto the vent fitting on the valve cover and the K&N intake tube. 23a. Reconnect the temperature sensor electrical connection. 24. Reconnect the vehicle’s negative battery cable. Double check to make sure everything is tight and properly positioned before starting the vehicle. 25. The included C.A.R.B. exemption sticker must be visible under the hood so that an emissions inspector can see it when the vehicle is required to be tested for emissions. It will be necessary for all K&N high flow air intake systems to be checked periodically for realignment, clearance and tightening of all connections. Failure to follow the above instructions or proper maintenance may void warranty. For more product information go to knfilters.com. K&N makes products for nearly every vehicle on the road. The K&N website allows you to search products by vehicle or dimension, download installation instructions, view dyno charts showing typical horsepower gains for this product, and view product details. For information on where to buy K&N products, go to knfilters.com.