K&N E-0668 High Flow Performance Air Filters -Pair for 08-15 Audi R8 4.2L V8 FSI

Vehicle Fitment

• 2008-2015 Audi R8 (Type 42, 4.2L V8 FSI)

Fitment Notes

• Does not fit Audi R8 V10 5.2L
• Sold as a pair - 2 filters required per vehicle

Features

• High-flow oiled cotton gauze media
• Four-layer pleated design for strong filtration
• Pre-oiled and ready to install out of the box
• Washable and reusable for the life of the vehicle
• Epoxy-coated wire mesh reinforces pleats
• Direct drop-in fit with factory air box
• Compatible with OEM MAF sensors and electronics
• 50-state emissions legal for street use
• K&N Million Mile Limited Warranty
• Service interval up to 50,000 miles between cleanings

Specifications

• Filter shape: round straight
• Filter media: cotton gauze
• Height: 6.625 in (168 mm)
• Flanges: none (drop-in)
• Package quantity: 2 filters
• Replaces OE part: 420133843B
• Color: red

Included Components

• 2x K&N E-0668 Replacement Air Filters

Product Description

The K&N E-0668 is a pair of high-flow drop-in replacement air filters engineered for the dual-filter air box on the Audi R8 4.2L V8. Oiled cotton gauze media increases airflow over a standard paper filter while capturing harmful contaminants, delivering gains in throttle response and horsepower with no tuning required.

Installation is a direct swap into the factory air box with no modifications, and both filters work seamlessly with the OEM mass airflow sensors. Washable and reusable for the life of the vehicle, the E-0668 pair eliminates the cost of repeat disposable filter purchases and is backed by K&N's Million Mile Limited Warranty.