Admisión de aire frío para Honda Civic Si (2006-2011) Motor 2.0L

The Wrench Time

• Estimated Time: 90-120 Minutes
• Difficulty: 4/10 - Requires front bumper removal for optimal fender well routing and delicate sensor handling.

Tools You Will Need

• 10mm deep socket and ratchet with a 6-inch extension
• 8mm socket or flathead screwdriver (for hose clamps)
• Panel popper tool (essential for the brittle factory bumper and cowl clips)
• #2 Phillips screwdriver (for the MAF sensor)
• Needle-nose pliers (for factory spring clamps on breather hoses)

Phase 1: Removing the Factory Part (2006-2011 Honda Civic 2.0L)

1. Disconnect the Battery: Always start by disconnecting the negative battery terminal using a 10mm wrench to prevent check engine lights and allow the ECU to reset.
2. Unplug the MAF Sensor: Locate the Mass Air Flow sensor on the factory airbox. Carefully depress the plastic tab and pull the harness connector straight back. Do not yank the wires.
3. Remove the Factory Intake Hose: Use an 8mm socket to loosen the hose clamp at the throttle body. Next, use needle-nose pliers to squeeze the spring clamps and disconnect the PCV breather lines attached to the factory rubber intake tube.
4. Unbolt the Upper Airbox: Grab your 10mm deep socket and 6-inch extension to remove the bolts holding the bulky K20Z3 upper airbox assembly to the chassis. Lift the box out of the engine bay.
5. Drop the Front Bumper and Lower Resonator: Use a panel popper tool to remove the upper radiator cover push-clips, and a Phillips screwdriver/10mm socket for the lower and wheel arch bolts. Pull the bumper cover off. With the bumper out of the way, use a 10mm socket to unbolt and extract the factory lower intake resonator hidden behind the driver-side fog light area.

Phase 2: Installing the Cold Air Intake for Honda Civic Si (2006-2011) 2.0L Engine

1. Transfer the MAF Sensor: Using a #2 Phillips screwdriver, very carefully remove the two screws holding the MAF sensor in the factory housing. Gently extract the sensor without touching the delicate element inside. Seat the sensor into the new intake pipe and secure it using the supplied hardware.
2. Mount the Silicone Coupler: Slide the provided silicone coupler onto the throttle body. Slide the hose clamps over the coupler and loosely tighten them with an 8mm socket so you still have room for adjustment.
3. Route the Cold Air Intake Pipe: Guide the new aluminum intake pipe down through the hole in the chassis into the driver-side fender well area. Push the upper end into the throttle body coupler.
4. Secure the Bracket and Filter: Locate the welded bracket on the new intake pipe. Line it up with the factory lower resonator mounting hole and secure it using a 10mm socket and the supplied vibration mount. Attach the high-flow air filter to the bottom of the pipe in the fender well and lock it down with an 8mm socket.
5. Reconnect and Relearn: Plug the factory MAF harness back into the sensor until it clicks. Attach the PCV breather lines to the new pipe ports. Reinstall the front bumper and reconnect the negative battery terminal. On the first startup, the vehicle gas pedal should not be touched for a 20 seconds until the ECU adjusts to the new airflow volume.

Disclaimer: This is a general guide provided for the 2006-2011 Honda Civic 2.0L. Always refer to your factory service manual for exact torque specifications and safety procedures.