Unleash Your Engine's Potential with the K&N 57S-4000 Performance Airbox

Upgrade your Ford C-Max, Focus, Volvo C30, S40, V50, V70, or Mazda 3/5 with the K&N 57S-4000 Performance Airbox, engineered to significantly enhance your vehicle's airflow and power output. This high-performance air intake system directly replaces your restrictive factory air filter and air box lid, allowing your engine to breathe more freely.

Key Features and Benefits:

• Reduced Airflow Restriction: The K&N 57S-4000 is meticulously designed to minimize restriction, smoothing and straightening the air path into your engine.
• Increased Horsepower and Acceleration: By enabling your engine to ingest a larger volume of air, this intake system delivers noticeable gains in usable power and acceleration across the entire RPM range.
• High-Flow Air Filter: Equipped with an oversized, conical K&N high-flow air filter, designed for maximum airflow and longevity.
• Durable Air Box: Features an injection-molded air box lid with the iconic K&N logo, providing a secure and stylish enclosure for the filter.
• Extended Service Intervals: The K&N air filter can perform optimally for up to 100,000 miles before requiring service, depending on driving conditions.
• Easy Installation: Designed for a straightforward installation process using commonly available tools, fitting directly into the factory air box base.

This K&N 57S-4000 Performance Airbox is the ideal solution for drivers seeking a tangible improvement in engine performance and responsiveness. Experience the difference that superior airflow can make. Invest in quality and performance with K&N, available at GGCRACING.