Enhance Throttle Response: 2000-2003 Ford Focus 2.0L Cold Air Intake
Who Is This For? Designed specifically for first-generation Ford Focus owners running the 2.0L Zetec or Split Port engine who want to improve daily drivability, increase passing power, and achieve a sportier engine note without modifying the entire exhaust system.
The Factory Airbox Restriction: From the factory, your Focus is equipped with a restrictive plastic airbox and a dense paper filter designed more for silence than airflow. As these components age, the plastic can become brittle and the airflow pathway remains turbulent, leaving your 2.0L engine feeling sluggish during mid-range acceleration. You step on the gas to merge into traffic, and the engine feels like it’s gasping for air through a straw.
The Engineering Solution: The Rtunes Cold Air Intake system replaces the entire factory assembly with a high-flow, mandrel-bent T-304 aluminum induction pipe. This design eliminates the internal baffles that cause turbulence, providing a direct, smooth path for oxygen-rich air to reach the intake manifold. By repositioning the high-performance cone filter, the system draws in cooler air from outside the immediate engine bay heat zone, resulting in a more efficient combustion cycle and a noticeable 7-10% increase in horsepower.
The Comparative Edge: Why This Beats the Competition
-
Optimized Airflow Geometry: Unlike generic universal kits that use flexible plastic hoses, this kit features polished T-304 aluminum. This material dissipates heat faster and maintains a consistent internal diameter for maximum air velocity.
-
Sustainable Performance: This system includes a washable and reusable pleated cone filter. Unlike standard paper filters that require constant replacement, this filter can be cleaned and re-oiled, saving long-term maintenance costs while protecting your engine from contaminants.
-
Direct Bolt-On Fitment: Engineered to use existing mounting points, this kit requires no permanent vehicle modifications. It is a complete solution including all necessary clamps and couplers to restore and improve your Focus’s breathing.
Technical Specifications & Factory Ratings
| Fitment |
2000-2003 Ford Focus (Specific trims) |
| Engine Platform |
Ford 2.0L Zetec (DOHC) / 2.0L SPI (SOHC) |
| Factory Ratings |
Approx. 110-130 HP / 125-135 lb-ft Torque |
| Material |
T-304 Polished Aluminum |
Compatibility & OEM Reference
Fits the Following Vehicles:
- 2000 Ford Focus (All Models with 2.0L Engine)
- 2001 Ford Focus (All Models with 2.0L Engine)
- 2002 Ford Focus (2.0L DOHC Engine ONLY - Except SVT)
- 2003 Ford Focus (All Models with 2.0L Engine - Except SVT)
Interchange Part Numbers:
RT-CAI-FOCUS-0003-RD, 2.0L-ZETEC-INDUCTION-RED
The Performance Promise
Buy with confidence. This kit is a high-mileage refresh for your Focus, designed to restore lost efficiency and provide a deep, sporty induction sound under heavy acceleration. Backed by automotive enthusiasts and ready for immediate installation.