BMC Filter: https://amzn.to/4aYtt5y
Stock Paper Filter: https://amzn.to/3xOhPvx
K&N Filter: https://amzn.to/3Uvs018
Degreaser: https://amzn.to/3Urzimr
Filter Oil: https://amzn.to/3UEHwrD

How to remove engine covers:    • Porsche Engine Access | 987.2 Boxster...  

Note: If you have the stock paper filter, there is no need to clean then spray with oil. You discard your paper filter and replace with a new one.