COBB Charge Pipe Ford Focus RS (2016-2018) CARB/Smog Legal - 793550

Fitment Information

• Ford Focus RS 2.3L EcoBoost AWD (2016, 2017, 2018)
  
  • Fits Manual Transmission Models Only
    

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-660-73

Specs & Features

• Consistent Power: Constructed from 2.5" Mandrel Bent Aluminum, ensuring the piping diameter stays constant from turbo to throttle body for maximum airflow velocity.
• Stop the Swell: Replaces the weak factory rubber hoses that expand ("balloon") under high boost, directing all that pressure into the engine rather than stretching the pipe.
• Weld-Free Durability: Features a Single-Piece Design for both the hot and cold sides, eliminating the risk of cracked welds or failure points found in cheaper, multi-piece kits.
• Zero Blow-Offs: Includes heavy-duty 4-Ply Silicone Couplers and high-torque T-Bolt Clamps to ensure your charge pipes stay locked on, even during track abuse.
• Stealth Upgrade: Finished in a durable Wrinkle Black Powder Coat that cleans up the engine bay and matches the OEM aesthetic for a high-end, professional look.
• Versatile Fitment: Designed to work perfectly with the Stock Intercooler or most aftermarket drop-in cores, making it a great standalone mod or part of a Stage 2 build.

Product Description

The Ford Focus RS runs high boost right out of the factory, and that pressure wreaks havoc on the stock plumbing. The OEM charge pipes are a mix of plastic and soft rubber. When you mash the throttle, those rubber sections expand like a balloon. This "expansion" acts like a shock absorber for your boost, creating a spongy throttle feel and delaying the power delivery. The COBB Tuning Hard Pipe Kit is the solution.

By replacing the rubber with rigid 2.5" Aluminum Tubing, COBB eliminates that expansion entirely. When the turbo spools, the air has nowhere to go but into the combustion chamber. The result? Sharper, more immediate throttle response. It transforms the car from feeling "quick eventually" to "quick immediately."

Many aftermarket pipes are chopped and welded together, creating ridges that disrupt airflow and potential cracking points. COBB uses Mandrel Bending to create single-piece pipes for both the Hot Side (Turbo to Intercooler) and Cold Side (Intercooler to Throttle Body). This smooth geometry reduces turbulence and restriction, allowing the turbo to work more efficiently.

This is a foundational modification for any RS owner. Whether you are keeping the car stock and want reliability, or tuning for big power, the stock pipes are a weak link waiting to fail. The COBB Hard Pipe Kit offers the peace of mind of metal parts with the fit and finish you expect from the leader in EcoBoost tuning. Ditch the rubber, keep the boost.