K&N Engineering 57S-4000 Performance Airbox for Ford Focus, C-Max, Volvo, Mazda 3/5

Description

Upgrade your vehicle’s air intake system with the K&N 57S-4000 Performance Airbox, designed specifically for select Ford, Volvo, and Mazda models. This high-performance airbox replaces the factory air filter and lid, significantly reducing airflow restrictions to provide your engine with a larger volume of clean, cool air. More airflow translates into improved engine breathing, resulting in noticeable gains in power, acceleration, and throttle response across the entire RPM range. The kit includes an oversized conical K&N high-flow air filter, engineered for durability and long service life, capable of lasting up to 100,000 miles before requiring maintenance under normal driving conditions. The injection-molded air box lid features the iconic K&N logo, adding a sleek aesthetic touch to your engine bay. Installing the performance airbox is straightforward and can be completed with common hand tools, making it accessible for DIY enthusiasts and professional mechanics alike. Built to last for the lifetime of your vehicle, the K&N 57S-4000 is backed by the renowned K&N Million Mile Limited Warranty, ensuring quality and reliability. Some models may be compliant with the latest TUV emissions and sound regulations, so it is recommended to verify compatibility with your specific vehicle. Enhance your vehicle’s performance and efficiency with this proven upgrade that guarantees power improvements and a more responsive driving experience.

Features:

• Reduces airflow restriction for improved engine breathing

• Includes oversized high-flow K&N conical air filter for maximum airflow and filtration

• Injection-molded air box lid with embossed K&N logo for durability and style

• Easy to install with common hand tools, designed for a direct fit

• Durable construction built to last for the vehicle’s lifetime

• Backed by K&N’s Million Mile Limited Warranty

• Designed to boost power and acceleration across RPM range

• Compatible with select Ford, Volvo, and Mazda models, including Ford Focus, C-Max, Volvo C30, S40, V40, V50, V70, Mazda 3, and Mazda 5

Fitment:
Ford C-Max Energi SE 2017
Ford C-Max Energi SEL 2013
Ford C-Max Energi SEL 2014
Ford C-Max Energi SEL 2015
Ford C-Max Energi SEL 2016
Ford C-Max Energi Titanium 2017
Ford C-Max Hybrid SE 2013
Ford C-Max Hybrid SE 2014
Ford C-Max Hybrid SE 2015
Ford C-Max Hybrid SE 2016
Ford C-Max Hybrid SE 2017
Ford C-Max Hybrid SEL 2013
Ford C-Max Hybrid SEL 2014
Ford C-Max Hybrid SEL 2015
Ford C-Max Hybrid SEL 2016
Ford C-Max Hybrid Titanium 2017
Ford Focus RS 2016
Ford Focus RS 2017
Ford Focus RS 2018
Ford Focus S 2013
Ford Focus S 2014
Ford Focus S 2015
Ford Focus SE 2013
Ford Focus SE 2014
Ford Focus SE 2015
Ford Focus ST 2013
Ford Focus ST 2014
Ford Focus ST 2015
Ford Focus ST 2016
Ford Focus ST 2017
Ford Focus ST 2018
Ford Focus Titanium 2013
Ford Focus Titanium 2014
Ford Focus Titanium 2015
Ford Transit Connect Titanium 2014
Ford Transit Connect Titanium 2015
Ford Transit Connect Titanium 2016
Ford Transit Connect XL 2014
Ford Transit Connect XL 2015
Ford Transit Connect XL 2016
Ford Transit Connect XLT 2014
Ford Transit Connect XLT 2015
Ford Transit Connect XLT 2016