• Cold Air Intake for Mitsubishi Eclipse (2006-2011) 2.4L L4 Engine
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Cold Air Intake for Mitsubishi Eclipse (2006-2011) 2.4L L4 Engine

$159.95
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Cold Air Intake System for Mitsubishi Eclipse (2006–2011) 2.4L – Performance Upgrade Kit

Compatible With:

  • 2006–2011 Mitsubishi Eclipse 2.4L
    Fits both automatic and manual transmission models
    Professional installation is highly recommended

Unlock the full potential of your Mitsubishi Eclipse with this high-performance cold air intake system. Engineered to relocate the air filter outside of the engine bay, this system delivers cooler, denser air to the engine—maximizing oxygen intake for improved horsepower, torque, and throttle response.

Unlike restrictive factory air boxes, this intake system is precision-tuned in both pipe length and diameter to optimize airflow resonance. This allows smoother, faster airflow throughout the RPM range, resulting in noticeable performance gains, improved fuel efficiency, and a deep, aggressive intake sound under acceleration.

Key Features

  • Performance Gains: Increases horsepower by approximately 5–10 HP and torque by 6–8%
  • Superior Filtration: Up to 95% filtration efficiency for cleaner, more efficient airflow
  • Premium Construction: Lightweight T304 aluminum piping for strength and heat resistance
  • Washable & Reusable Filter: Micro cotton gauze filter—clean and re-oil as needed
  • Improved Throttle Response: Delivers colder, oxygen-rich air for better combustion
  • Enhanced Engine Sound: Produces a deeper, sportier intake tone during acceleration
  • Better Fuel Efficiency: Optimized airflow helps reduce engine strain
  • Warranty Safe: Designed to not void your vehicle’s factory warranty

Why Upgrade Your Factory Air Box?

  • Gain more horsepower and torque
  • Improve acceleration and throttle response
  • Achieve better fuel economy
  • Enjoy a deeper, sportier intake sound
  • Add a clean, performance-focused look to your engine bay
  • Save money with a washable, reusable filter

Installation Information

Installation involves removing the factory air box using basic hand tools such as screwdrivers and socket wrenches. Most installations can be completed in under one hour.

For optimal performance, disconnect the vehicle’s battery after installation to allow the ECU to reset and recalibrate to the increased airflow.

⚙️ Note: While installation is straightforward, professional installation is highly recommended to ensure proper fitment and maximum performance.

Upgrade your 2006–2011 Mitsubishi Eclipse 2.4L with this cold air intake system and experience increased power, improved throttle response, and an aggressive performance sound every time you drive.

Engine Safety Rating
Difficulty 

Fitment

Make

Mitsubishi

Engine Size
  • 2.4L

Year
  • 2006
  • 2007
  • 2008
  • 2009
  • 2010
  • 2011

Installation & Tools

The Wrench Time

  • Estimated Time: 45-60 Minutes
  • Difficulty: 3/10 - Straightforward bolt-on upgrade on the 4G chassis requiring basic hand tools and delicate sensor handling.

Tools You Will Need

  • 10mm socket and ratchet with 6" extension
  • 8mm nut driver or flat-blade screwdriver
  • #2 Phillips screwdriver
  • Slip-joint pliers (for OEM spring-type vacuum clamps)
  • Trim panel popper (optional, for splash shield clearance)
Mechanic’s Pro Tip (The "Gotcha"):
The 4G69 engine in the 2006-2011 Eclipse uses a sensitive Mass Air Flow (MAF) sensor housed in the upper airbox. The harness clip becomes brittle over time due to under-hood heat cycles. Push down firmly on the center release tab and pull purely from the connector housing—never pull on the wires. When transferring the sensor to the new intake pipe, ensure the factory rubber O-ring is fully intact and seated squarely; an improperly seated O-ring will create an unmetered air leak and trigger an immediate P0171 lean code.

Phase 1: Removing the Factory Part

  1. Disconnect the Battery: Loosen the negative battery terminal using a 10mm wrench and isolate the cable away from the post to clear the ECU memory and prevent accidental electrical faults.
  2. Disconnect the MAF Sensor: Press the locking tab on the MAF electrical connector and slide it free. Using a #2 Phillips screwdriver, back out the two factory screws retaining the MAF sensor to the OEM airbox housing. Carefully pull the sensor straight out and set it aside in a clean, safe area.
  3. Remove the Breather Hose: Use slip-joint pliers to squeeze the spring clamp on the crankcase breather/PCV hose at the factory rubber intake duct, then slide the hose off the plastic nipple.
  4. Loosen the Throttle Body Clamp: Loosen the factory hose clamp securing the intake bellows to the throttle body using an 8mm nut driver or flat-blade screwdriver.
  5. Unbolt and Remove the OEM Airbox: Remove the factory airbox mounting bolts from the chassis tray using a 10mm socket with an extension. Disengage the air intake snorkel from the front core support and lift the entire OEM intake and filter assembly out of the engine bay.

Phase 2: Installing the Cold Air Intake for Mitsubishi Eclipse (2006-2011) 2.4L

  1. Install Throttle Body Coupler: Slide the silicone transition coupler onto the throttle body mouth. Secure the throttle body side using an 8mm nut driver, leaving the outer clamp slightly loose for pipe adjustment.
  2. Transfer the Factory MAF Sensor: Insert the OEM MAF sensor into the CNC-machined adapter plate on your new intake tube, verifying the rubber O-ring creates an airtight seal. Secure the sensor using the supplied hardware and a #2 Phillips screwdriver or hex key, taking care not to over-torque into aluminum threads.
  3. Mount the Intake Pipe and Vibration Isolator: Secure the rubber vibration mount to the factory airbox mounting point using a 10mm socket. Guide the new intake tube into the throttle body silicone coupler and align the mounting bracket with the rubber stud. Fasten loosely with the provided washer and nut using a 10mm socket.
  4. Attach Breather Line and Air Filter: Connect the factory crankcase breather hose onto the intake tube’s welded vacuum port and secure it with the clamp using slip-joint pliers. Install the cone air filter onto the end of the intake tube, adjusting clearance away from the chassis and wiring, then tighten the clamp firmly with an 8mm nut driver.
  5. Lock Down Clamps and Reconnect Electronics: Fully tighten all remaining hose clamps using an 8mm nut driver. Snap the electrical harness connector back onto the MAF sensor until it audibly clicks. Reconnect the negative battery cable with a 10mm wrench.
  6. ECU Calibration Startup: Turn the ignition to the ON position for 5 seconds, then crank the engine. Do not touch the gas pedal for at least 20 seconds during the initial idle cycle to allow the Mitsubishi 4G69 ECU to properly relearn its baseline idle air trim with the increased airflow.

Disclaimer: This is a general guide provided for the 2006-2011 Mitsubishi Eclipse 2.4L. Always refer to your factory service manual for exact torque specifications and safety procedures.

Warranty

All products are backed by our Limited Lifetime Warranty. We stand by our quality. [See terms]
Cold Air Intake for Mitsubishi Eclipse (2006-2011) 2.4L L4 Engine

$159.95