How to Install Injen Power-Flow Cold Air Intake - Polished on your F-150

Complete stock intake shown. Disconnect battery before install.

Loosen clamp on throttle body using 8mm nut driver.

Disconnect MAF sensor harness.

Disconnect the crank case line from stock fitting on engine.

Pull back the intake tube from the throttle body.

Un-clip the 3 clips holding in upper half of air box and slide back.

Now, lift and remove the whole intake assembly out of vehicle.

Once removed, you can now install the Injen intake system.

With 13mm socket and extension, loosen the bolt on side of air box housing.

Remove bolt and save for later install.

With t20 torx bit, loosen and remove the 2 screws holding in the MAF sensor.

Carefully pull the MAF sensor out and set aside.

Install the 4” velocity adaptor tot he inside of the heat shield.

Secure the adaptor using the provided M6 button head screws and tighten using allen key.

Attach the vinyl trim to the side of the heat shield.

Attach the other vinyl trim to the side with tabs. Note: make sure you attach the trim to heat shield to prevent rubbing and vibration.

Install the filter to the adaptor and tighten using 8mm nut driver.

Instal the heat shield assembly into the vehicle and position tab side first.

Make sure the heat shield assembly with trim seats in the groove. Position heat shield forward for the tab to align with hole from step 11. Align the tabs to clips.

Secure the tab using the bolt from step12.

Secure the heat shield and clip to tabs.

Tighten the bolt using 13mm socket and ratchet. Make sure the heat shield assembly is tight and secure.

Install the MAF sensor into the new injen intake tube.

Secure the MAF sensor using provided M4 button head screws and tighten using 2.5mm allen key.

With clamps provided, attach to the straight hose and install to the throttle body.

Install the hump hose with clamps to the tube, Do not tighten.

Install the intake tube into the vehicle and position to the throttle body and adaptor.

Slide the hump hose on to the adaptor and position.

Now tighten the clamps on throttle body using 8mm nut driver.

Tighten the clamps on the hump hose using 8mm nut driver.

Re-connect the MAF sensor harness.

With provided 15mm hose, install to engine fitting and intake tube fitting and secure.

Check the entire system for the best possible fit. Once you have checked the entire system for leaks, rubbing or rattling, continue to tighten all nuts, bolts and clamps. Reconnect the negative battery terminal prior to starting the engine.

Congratulations! You have just completed the installation of the best engineered intake system, featuring Web Nano-fiber dry filter. Periodically, check the system for fitment, this will enhance the life of your Power-Flow system.

1. Upon completion of the installation, reconnect the negative battery terminal before you start the engine.
2. Align the entire intake system for the best possible fit. Once the intake has been properly fitted continue to tighten all nuts, bolts and clamps.
3. Periodically, recheck the alignment of the intake system and make sure there is proper clearance around and along the length of the intake. Failure to follow proper maintenance procedures may cause damage to the intake and will void the warranty.
4. Start the engine and listen carefully for any odd noises, rattles and/or air leaks prior to taking it for a test drive. If any problems arise go back and check the vacuum lines, hoses and clamps that maybe causing leaks or rattles and correct the problem.
5. Check the filter for excessive dirt build up. Clean or replace the filter with an original Injen/AMSOIL filter now sold on-line at "injenonline.com"). Congratulations! You have just completed the installation of the best intake system sold on the market. Enjoy the added power and performance of your new intake system.