2004-2006 Chevy Colorado Brute Force Intake System Installation

Getting Started
a) Make sure vehicle is parked on a level surface. Set parking brake.
b) Disconnect negative battery terminal from the battery.
c) If engine has run within the past two hours, let it cool down.
Removal of the stock intake system.
a) Before removing any of the O.E. components, label each individual part so that no components become mixed up during the installation process.
b) Unplug the wire harness from the Mass Air Flow (MAF) sensor. Remove the two screws retaining the MAF sensor and carefully remove the MAF sensor.
c) Loosen the hose clamp on the stock air box. Remove the air box by removing the two bolts and the nut securing it. Lift air box out of vehicle.
d) Loosen the hose clamp on the throttle body attached to the stock intake resonator. Unplug the small breather hose connected to the front of the resonator.
e) Remove the two bolts securing the resonator to the valve cover. Lift the resonator up and remove the breather hose from the valve cover and remove the resonator.
f) Remove the rubber breather hose adapter plug from the hard plastic breather hose by gently pulling it off while holding the hard plastic line.

source