Fitment Information

• Ford Fiesta ST (2014, 2015, 2016, 2017, 2018, 2019)

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-660-51

Specs & Features

• Smooth Flow: Constructed from 2.5" Mandrel Bent Aluminum to replace the restrictive factory piping, ensuring air gets from the turbo to the engine without hitting a wall.
• No More Ballooning: Replaces soft rubber hoses that expand under pressure with rigid tubing, meaning boost energy goes into the engine, not into stretching the hose.
• Stealth Style: Finished in a durable Wrinkle Black Powder Coat that cleans up the engine bay and matches the factory trim for a sleek, upgraded look.
• Leak-Proof: Includes heavy-duty 4-Ply Silicone Couplers and high-torque T-Bolt Clamps to keep the pipes from blowing off, even on high-boost maps.
• Universal Fit: Ingeniously designed to fit perfectly with either the Stock Intercooler or the COBB Intercooler, offering a clear upgrade path.

Product Description

The Ford Fiesta ST is an absolute riot to drive, but Ford cut corners on the plumbing. The factory charge pipes are a mix of plastic and rubber that act like a balloon. When the turbo spools up, those hoses expand, creating a spongy throttle feel and delaying power delivery. The COBB Tuning Hard Pipe Kit replaces that squishy mess with rigid, high-flow aluminum. By maintaining a constant 2.5-inch diameter with smooth mandrel bends, COBB ensures the air flows freely from the turbo outlet all the way to the throttle body.

COBB didn't just chop and weld pipes together. These are single-piece tubes for both the "hot side" (turbo to intercooler) and "cold side" (intercooler to throttle body). This seamless design eliminates potential failure points like cracked welds. Because aluminum doesn't swell like rubber, the driver gets sharper, more immediate throttle response. It’s the difference between feeling the boost eventually and feeling it now.

Whether the car is running a completely stock setup or a big turbo build, these pipes fit. They are designed to mate perfectly with the factory intercooler for a quick bolt-on upgrade, but they are also ready to support the massive COBB FMIC when the time comes for more power.

Think of this as "artery surgery" for the 1.6L EcoBoost. It opens up the airflow, prevents boost leaks, and cleans up the engine bay. It’s a foundational mod that makes the car more consistent and fun to drive. Don't let rubber hoses steal your boost—lock it in with COBB.