K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. These filters are washable and reusable and are custom designed to fit into your existing factory air box.

• Designed to boost horsepower and rate of acceleration
• Can be cleaned and used again
• High air flow with exceptional filtration
• Lasts up to 50,000 miles before cleaning is required depending on driving conditions
• Emissions legal in all 50 US states
• Million Mile Limited Warranty®

We do not sell intake kits for the IS-F and RCF that eliminate the stock airbox, because they do not work! Beware of dyno graphs showing power gains from IS-F intake systems, the gains are temporary due to inadvertent airflow scaling changes imposed by these intake "systems."