The aFe company the name of which stands for advanced Flow engineering is one of the most well-known and established companies in the U.S. producing highly-efficient air intake systems and air filters for a wide range of motorcycles. Since 1999, aFe has been designing, manufacturing, and testing its products in state-of-the-art facilities in Corona, California. Thanks to the use of breakthrough technologies, high-quality aFe air intakes have outstanding filtration properties allowing for better airflow of cool, clean air to your engine unlocking its full potential.
Cooler air is denser, which means it contains more oxygen required for efficient combustion. As a result – you get a higher engine output. All aFe filters can be easily cleaned and re-oiled to extend their service life. Until the end of this year, you can save up to 10% when purchasing a new air filter for your bike. Prices are already reduced.
Direct Fit Aries Powersport™ Pro 5R Panel Air Filter - MOTORCYCLEiD.com
2005-2008 BMW K1200GT, K1200R, K1200S
2009 BMW K1300GT, K1300R, K1300S
Also, check out filter cleaning instructions from aFe: https://www.motorcycleid.com/images/afe/products/pdf/87-10055-instruction-sheet.pdf
If you have any questions, feel free to contact me any time.