K&N Engineering 57-9004 User Manual

CAUTION!! PLEASE READ CAREFULLY AND COMPLETELY BEFORE BEGINNING WORK ON YOUR VEHICLE.
K&N suggests that you have a repair manual available for reference during installation of the K&N Filtercharger

®

Injection Performance Kit.

2

1)

Disconnect the vehicle's negative battery cable.

2)

Remove the inter-cooler tubes from the vehicle, held in place by hose clamps.  (see fig. 1)

3)

Remove the bolts holding the airbox to the body.  There are 2 on the airbox and 1 on the mass-air bracket.

4)

Loosen the hose clamp where the intake hose connects to the mass-air sensor.

5)

Carefully unplug the power cable from the mass-air sensor (held in place by a small spring-clip) and remove the wire from 
the mass-air sensor (hooked to a small bracket with a plastic clip).

6)

Un-hook the vacuum hoses from the mass-air bracket.  Do not remove them from the vehicle.

7)

Remove the mass-air sensor and airbox as an assembly.

8)

Unclip the airbox lid and remove the air filter.

9)

Remove the nuts holding the mass-air sensor to the airbox (there are metal locking tabs over the nuts that must be bent 
out of the way with a straight-bladed screwdriver).

10) Remove the foreign-object-deflector screen and separate the mass-air sensor from the airbox.  

**CAUTION**  The honeycomb material in the mass-air sensor is very fragile.  Be careful not to damage it.

11) Remove the 4 studs from the mass-air sensor.  If you thread two nuts on to the stud, and tighten them together, you can 

then back the stud out with the bottom nut.