K&N Performance Intake Kit for Ford C-Max/Focus II / Volvo C30/S40/V40/V50/V70 / Mazda 3/5
K&N Performance Intake Kit for Ford C-Max/Focus II / Volvo C30/S40/V40/V50/V70 / Mazda 3/5
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K&N Performance Intake Kit for Ford C-Max/Focus II / Volvo C30/S40/V40/V50/V70 / Mazda 3/5
Transform your vehicle's performance with the K&N 57S-4000 Performance Airbox. Designed specifically for select models including the Ford C-Max, Focus II, Volvo C30, S40, V40, V50, V70, and Mazda 3/5, this intake kit replaces the restrictive factory air filter and air box lid to unleash your engine's true potential.
Key Features:
- Enhanced Airflow: The K&N performance air box significantly reduces air flow restriction, allowing your engine to inhale more air compared to the factory setup.
- Improved Engine Performance: More air means more usable power and acceleration across the entire RPM range, giving you an exhilarating driving experience.
- Durable Design: Constructed with a robust injection molded air box lid featuring the K&N logo, this airbox is built to last for the life of your vehicle.
- Long-lasting Filter: Comes equipped with an oversized conical K&N high-flow air filter that can last up to 100,000 miles before servicing is needed, depending on driving conditions.
- Easy Installation: Designed for straightforward installation, the performance air box can be fitted into the air box base using commonly available tools.
- Warranty and Compliance: Backed by K&N's Million Mile Limited Warranty, with many models compliant with the latest TUV emissions and sound regulations.
Benefits:
- Experience noticeable gains in horsepower and torque for a more powerful drive.
- Enhance your vehicle's engine efficiency for improved fuel economy.
- Enjoy a sporty engine sound that complements the performance upgrades.
Use Cases:
Ideal for car enthusiasts looking to upgrade their ride, the K&N Performance Intake Kit is perfect for:
- Daily driving with improved responsiveness and acceleration.
- Weekend racing events where performance is key.
- Long road trips requiring both power and efficiency.
Upgrade your Ford C-Max, Focus II, Volvo C30/S40/V40/V50/V70, or Mazda 3/5 today with the K&N 57S-4000 Performance Airbox and feel the difference in every drive!
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

