The K&N 57I-1000 57i Generation II Induction Kit uses a non-metallic rotationally molded tube to reduce air temperature for improved performance.

The K&N 57-0047 57i air intake system is a great way to add performance. Its large air filter allows for high air flow and great sound also.

Designed to deliver boosts in horsepower, torque and acceleration, the K&N 57i Performance Induction Kit is your ride's best aftermarket weapon; Uses stock mounting positions for easy …

K&N 57i Series cold air induction kits are specifically designed for each different vehicle and will free your car from the size restriction that comes with the factory air box. These economical …

2006年8月12日 · ULTIMATE LONGEVITY: 10-Year/Million Mile Limited Warranty protects for the life of your vehicle. BETTER TOWING: Improves acceleration and uphill performance when …

Find the right K&N Engineering 57i Series Air Intake System for your vehicle at O'Reilly Auto Parts. Place your order online and pick it up at your local store for free.

K&N 57i Series Induction Kits replaces your Miata's restrictive stock air box with a large open-air style filter. The extra surface area provides more airflow and captures more dirt, increasing its …

The K&N 57i guarantees horsepower, economical induction kits designed to provide more horsepower and acceleration, easy to install, usually approx 30 minutes. The filter will last …

K&N 57 Series Fuel-Injected Performance Kit (FIPK) Air Intake Systems are designed to reduce air intake restriction and are proven to improve airflow over OE air filter assemblies. The intake …