2015-2018 Ford Focus ST Air Intake System by Custom Performance
The Focus ST is a well-rounded car in just about every aspect, and the intake system is too.
The stock Focus ST 2015+ Intake system is designed well, and the community sees that. Still cp-e felt that they
could take the good & the bad from the stock system, and make it even better. After a long engineering process,
cp-e is proud to release the Focus ST Intake.
The intake tube then attaches to the air box through a 5-ply silicone elbow and a CNC-lathed
aluminum bellmouth. This velocity stack bellmouth smoothly compresses the air to provide a minimal amount of
energy loss which translates to a higher air speed through the tube. We include a 4.00” air filter specially
designed to give the most free flowing air flow possible. Additionally this comes with your choice between
Dflow or SynOil.
Part of what makes the the stock intake system well-rounded is the great design of the stock
box. It brings in cool air efficiently, and isolates the filter from the hot air in the engine bay. Where the
stock box lacks is where the cp-e Intake shines above all. The Intake box is laser cut and CNC-bent 18 gauge
stainless steel. Stainless steel is great for this application for not only its resistance to corrosion, but
also its thermal properties allow the interior of the box to stay cool, even when the box itself heats up. The
box utilizes both stock fresh air ducts, and also sucks up cool fresh air from the wheel well. The box is
topped off by clear plexi glass to seal the filter from the heat, providing a sweet view and easy access to the
filter. Lastly, the box easily mounts in the stock location with the laser cut brackets and CNC-lathed mounting
feet.
Features
- Fully sealed custom-designed CNC formed airbox using factory ram air
- Perfect OEM fitment with no CEL
- Powder-coated Satin Black 3" intake tube and box
Benefits
- More than 5% gains in upper RPMs
- No power loss in lower RPMs
- Laser-cut support bracket
Please Note: If your car uses the mass air sensor you will need a tune that accounts for the added
air volume. USDM cars have a mass air sensor in them however they only use it for intake air temperature
measurements so there is no tune required for USDM cars.
