Cold Air Intake for Ford Focus ST (2013-2018) 2.0L Turbocharged Engine

Vehicle Fitment

• 2013–2018 Ford Focus ST
• 2.0L EcoBoost Turbocharged Inline-4 Engine (1999cc DOHC)
• 4-Door Hatchback Models Only
• Turbocharged ST platform only
• Not compatible with non-ST Focus models

Performance & Design

High-Velocity Airflow Optimization: This cold air intake system is engineered to maximize airflow efficiency by eliminating the restrictive factory air box and internal baffles. The smooth, mandrel-bent intake tubing provides a direct airflow path to the turbo inlet, reducing turbulence and pressure drop while improving volumetric efficiency.

Throttle Response & Turbo Efficiency: Reduced intake restriction allows the turbocharger to build boost more efficiently, resulting in quicker throttle response, improved turbo spool characteristics, and more immediate power delivery throughout the mid-range and upper RPM band.

Power Gains: Under optimal conditions, testing has shown potential gains of up to 10% in horsepower and torque. Actual performance improvements may vary depending on vehicle condition, altitude, ambient temperature, fuel quality, and supporting modifications.

Construction & Materials

T304 Aluminum Construction: The intake tube is manufactured from mandrel-bent T304 aluminum, offering excellent corrosion resistance and improved heat dissipation compared to factory plastic components. Consistent internal diameter throughout each bend ensures smooth airflow without restriction or collapse.

High-Flow Filter Design: The open-element, high-flow air filter features washable and reusable filter media designed to increase airflow while maintaining effective filtration. The filter location promotes cooler intake air temperatures and supports efficient combustion under load.

Features & Components

• High-flow cold air intake system for Ford Focus ST
• Designed specifically for the 2.0L EcoBoost turbocharged engine
• Mandrel-bent T304 aluminum intake piping
• Reduces intake restriction and airflow turbulence
• Improves turbo efficiency and boost response
• Enhances throttle response across the RPM range
• Produces a deeper, more aggressive turbo intake sound
• Washable and reusable high-flow air filter
• No ECU tuning required
• Compatible with factory MAP/MAF sensor configurations

What’s Included

• Mandrel-bent T304 aluminum intake tube
• High-flow performance air filter
• Heavy-duty silicone couplers
• Industrial-grade clamps and mounting brackets
• All required mounting hardware

Installation

• Direct replacement for factory induction system
• Bolt-on installation using factory mounting points
• No cutting or drilling required
• Estimated installation time: 45–60 minutes
• Basic hand tools recommended
• No ECU tuning required

Installation Note: Disconnect the negative battery terminal before installation and leave it disconnected for at least 60 seconds. This allows the ECU to reset and adapt to the increased airflow characteristics. Always install the intake on a completely cool engine to ensure proper fitment and safety.

Filter Maintenance

Inspection Schedule: Inspect the air filter every 5,000 miles and clean if necessary. Driving conditions such as dusty environments, urban traffic, or spirited driving may require more frequent inspection and cleaning.

Cleaning Procedure: Remove the filter from the intake tube and gently tap it to remove loose debris. Apply an appropriate air filter cleaning solution to both the inside and outside of the filter element, working the solution into the filter media. Allow the cleaner to soak for approximately 10 minutes.

Rinse the filter thoroughly with low-pressure water from the clean side outward until water runs clear. Shake off excess water and allow the filter to air dry completely in a clean environment. Once fully dry, apply air filter oil evenly according to product specifications and allow the oil to wick through the filter material for approximately 20 minutes before reinstalling. Ensure the filter is completely dry before applying oil, as moisture will prevent proper oil absorption.

Sound Characteristics

Induction Sound: Removal of factory intake baffles combined with the open-element filter design produces a noticeably more aggressive turbo induction sound during acceleration and boost. Sound levels remain refined during normal driving while becoming more pronounced under heavy throttle and turbo load.