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K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.
Experience a significant boost in performance with the K&N E-0668 High-Flow Replacement Air Filter. Specifically engineered for the 2008-2013 Audi R8 4.2L V8, as well as various Porsche Boxster and Cayman models from 2013-2014, this filter is designed to increase horsepower and acceleration by optimizing airflow to your engine. K&N's legendary washable and reusable cotton gauze media provides superior filtration while allowing for maximum air intake.
Invest in the K&N E-0668 air filter to protect your engine and enhance its performance. Enjoy K&N's 10-Year/Million Mile Limited Warranty and feel the difference with GGCRACING.
| Brand | K&N Engineering |
|---|---|
| Manufacturer part number | E-0668 |
| GGC SKU | KNNE-0668 |
| UPC / GTIN | 024844312167 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 11.9 × 11.8 × 6.1 in |
|---|---|
| Shipping weight | 2.3 lb |
| Year | Make | Model | Trim |
|---|---|---|---|
| 2008-2012 | Audi | R8 | Base |
| 2011-2012 | Audi | R8 | Spyder |
| 2013-2014 | Porsche | Boxster | Base, S |
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