How to Install K&N Brute Force Cold Air Intake - Black on your Sierra

a. Remove both crankcase vent hoses by squeezing the white clip at the valve cover breather port. ​

b. Pull up on the red locking clip, then depress down on the black tab while removing the mass air sensor connector. ​

c. Loosen the hose clamps on the air box and the throttle body. Then pull the resonator box out of the vehicle.

d. Gently pull up on the air box to disengage it from the rubber grommets and remove from engine compart-ment. ​

e. Loosen and remove the four M6 bolts. Then, remove the air box plate from the vehicle. These will not be re-used. Note: Do not discard the plate or hardware. ​

f. Remove the two M4 torx bolts with a T15 bit and slide the mass air sensor out of the tube. Note: Be very care-ful with the sensor. This will be re-installed in step 3c ​

a. When installing the intake system, do not completely tighten the hose clamps or mounting hardware until  instructed to do so. 

a. Install the provided O-ring into the mass air sensor adapter. 

b. Install the mass air sensor adapter onto the tube with the provided M4 allen bolts. ​

c. Install the mass air sensor into the mass air sensor adapter that has already been attached to the AEM intake tube with the provided M4 allen’s. Note: Be very careful with the mass air sensor. ​

d. Install the two vent hose fittings into the tube. Note: Hand tighten, then add a quarter turn with a wrench. ​

e. Slide the two provided vent hoses and four clamps onto the vent fittings and tighten. The shorter hose will go on the left vent, and the longer hose will go on the right vent. ​

f. Install the edge trim onto the AEM air box, trim off excess if necessary.

g. Install the throttle body coupler with hose clamps 5.3L use p/n 341018 and #56; 6.2L use p/n 341014 and #64. Do not tighten clamps at this point. ​

h. Install the three provided bushings and mount them into the inner right side fender. ​

i. Insert the AEM air box over the previously installed bushing mounts. Use the provided M6 bolts and wash-ers to secure air box to the bushing mounts. ​

j. Drill a 1/4” diameter hole in the plastic cap of the AEM air filter as shown above. Note: Clean out all plastic shavings from the inside of the filter. ​

k. Install the small grommet (784631) into the drilled hole, and then install the 5/32” plastic elbow port (8- 152) into the grommet. Install the 5/32” air hose (5- 3012) onto the elbow port as show. ​

l. Install the air filter insert into the AEM air filter and place the filter in the AEM air box. ​

m. Install the assembled AEM tube into the AEM air box first then insert it into the throttle body coupler. Then slide the two vent fitting hoses over the valve cover breather ports and tighten those hose clamps. ​

n. Slide the filter onto the tube and tighten the hose clamp. ​

o. Tighten both of the intake tube to throttle body coupler hose clamps. ​

p. Install the provided grommet into the AEM air box lid. Then insert the filter minder gauge into the grom-met. ​

q. Install the 5/32” hose from the air filter to the filter minder gauge installed in step 3p. ​

r. Install the AEM lid onto the air box and tighten the four provided M6 bolts. ​

s. Reconnect the mass air sensor plug back into the mass air sensor, then push down on the red locking tab. ​

Stock intake system Installed

AEM intake system installed