Fitment Information

• Ford Focus RS Mk3 (2016, 2017, 2018)

Emissions Compliance

• 50 State Legal - This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number: D-660-71 (Intercooler Core Only) D-660-72 (Intercooler Kit)

Specs & Features

• Massive Core Upgrade: Features a giant 26" x 8.6" x 5" Bar and Plate Core, significantly increasing volume over the stock unit to keep intake temps pinned near ambient.
• Smart Flow Technology: The cast aluminum "hot side" end tank features a Custom Internal Fin that forces air to disperse evenly across the entire core, preventing hot spots and maximizing efficiency.
• Efficiency King: Delivers up to 25% Improved Cooling Efficiency compared to stock, with a negligible pressure drop (only 0.3-0.5 psi), meaning you get colder air without losing throttle response.
• No Cutting Required: Ingeniously designed to fit behind the factory bumper without any trimming, cutting, or fabrication—it’s a true bolt-on solution.
• Hard Pipe Kit (Optional): The full kit adds 2.5" Mandrel-Bent Aluminum Piping in wrinkle black to replace the expanding rubber factory hoses, handling higher boost without swelling.
• Leak-Free Connection: Uses heavy-duty 4-Ply Silicone Couplers and reliable worm clamps to ensure the boost stays inside the system where it belongs.

Product Description

The Ford Focus RS is a track-ready beast, but the factory intercooler is its Achilles' heel. During aggressive driving, the stock unit gets overwhelmed, heat soaks, and forces the ECU to pull timing. That means less power right when you want it most. The COBB Tuning Front Mount Intercooler is the "hard part" fix that unlocks the true potential of the RS.

• Option 1: Core Only (The Foundation) If you are happy with your stock piping but need better cooling, the Core Only option is the perfect drop-in upgrade. It replaces the undersized factory unit with a massive 5-inch thick Bar and Plate core. COBB engineers didn't just make it bigger; they made it smarter. A unique diverter fin inside the inlet end tank ensures air is spread across the full height of the core, not just tunneling through the middle. This results in a massive drop in Charge Air Temperatures (CAT) without adding lag.
• Option 2: The Full Kit (Core + Hard Pipes) For the driver chasing big boost, the Full Kit is the way to go. It pairs the massive core with 2.5" Aluminum Hard Pipes. Why does this matter? The stock rubber hoses can expand (balloon) under high boost, creating a soft pedal feel and potential failure points. The COBB hard pipes eliminate that expansion, sharpening throttle response and ensuring the system can handle extreme pressure without bursting.

Efficiency is free horsepower. By dropping intake temps, you allow the engine to run more advanced timing safely. Whether paired with a COBB Accessport for a Stage 2 tune or running the stock calibration, this intercooler ensures the engine delivers consistent power in all weather conditions. It is the best "bang-for-your-buck" hardware mod for the RS platform.

Don't let a hot day ruin your track time. The COBB Intercooler is designed to overcome the factory weaknesses of the Focus RS cooling system. It installs easily, looks incredible behind the grille (available in Stealth Black or Silver), and provides the thermal headroom needed for future upgrades. Trust the brand that knows EcoBoost better than anyone—COBB.