01 First, turn off the ignition and disconnect the negative battery cable — as we’ll be disconnecting the IAT sensor, you can’t be too safe. You may first need to check whether disconnecting the negative battery cable will affect any engine control unit (ECU) memory settings. Once that’s done, disconnect the IAT sensor.
02 Remove the plastic engine cover on the air-filter side of the engine, and disconnect the crankcase breather hose from the valve cover.
03 Loosen the hose clamp securing the factory intake tube to the throttle body, lift the air-box assembly to dislodge it from the mounting grommets, and remove the complete assembly from the vehicle. Then remove the inlet air-diverter tray.
04 Remove the retaining clip that secures the windshield-washer bottle to the core support, but do not discard it — it will be needed later. Remove the core support bolt, and then install the provided heat-shield mounting bracket and secure it with the bolt from the previous step.
05 Reinstall the windshield-washer bottle using the retaining clip that you didn’t discard.
06 Install the filter adapter into the heat shield and secure with the provided hardware, and then install the rubber edging onto the heat shield — you will need to trim the rubber for a perfect fit.
Remove one of the factory mounting 07 grommets from the standard air-box, and install it in the base of the K&N heat shield.
08 Install the heat-shield assembly into the vehicle so that the mounting grommet slides onto the innermost mounting stud. Align the heat shield with the mounting bracket, and then secure with the spacer and hardware provided, ensuring that the spacer is used between the mounting bracket and heat shield.