Fitment Information
- Ford Fiesta ST (2014, 2015, 2016, 2017, 2018, 2019)
- This Air Intake is compatible with USDM vehicles 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-660-118
Specs & Features
- Wide-Open 3" Flow: Replaces the pinched stock plastic piping with a smooth, mandrel-bent 3" aluminum tube that feeds the turbo without restriction.
- Best-of-Both-Worlds Design: Retains the efficient factory "Ram Air" lower box but upgrades the lid and filter for maximum volume and cold air delivery.
- 32% More Filter Area: Swaps the flat panel for a massive, pre-oiled cone filter with a velocity stack, significantly increasing air volume over stock.
- Stage 2 Ready: This is the foundational part you need to safely jump to Stage 2 power levels (just add a FMIC).
- Tuning Made Simple: Fully compatible with COBB Accessport Off-The-Shelf (OTS) maps—no custom dyno tuning required to run this safely.
Product Description
The Fiesta ST is arguably the most fun car you can buy for the money, but from the factory, it sounds... well, quiet. The COBB Tuning Intake changes that immediately. We looked at the factory design and realized the lower airbox does a great job of grabbing cold air from the front of the car, so we kept that part. But everything above it? We overhauled it.
Smart Engineering (The "Hybrid" Box) Instead of giving you a "hot air" intake that sucks in engine bay heat, we designed a custom plastic airbox lid that seals perfectly to your factory lower box. Inside, we replaced the restrictive flat paper filter with a high-flow Cone Filter that utilizes a built-in velocity stack. This setup gives you 32% more surface area to gulp down air while keeping that air nice and cold.
The Noise & The Power We ditched the corrugated plastic intake tube for a 3" powder-coated aluminum pipe. This smooths out the airflow path directly to the turbo. Once you bolt this on (and yes, we include the necessary Intake Adapter so fitment is spot-on), you effectively unmuffle the engine. You’ll finally hear the turbo spool up and the diverter valve vent between shifts.
Summary This isn't just about making noise; it's about preparing your car for real power. The COBB Intake is the gatekeeper to Stage 2. Pair this with a Front Mount Intercooler and a COBB Accessport, and you transform the car completely. If you want parts that fit like OEM but perform like aftermarket race gear, this is the kit.

More in this category
COBB Air Intake
Ford Fiesta ST Parts
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