Hi Samuel, As per the online catalog resource of Mann, this type of filter is a performance type already, which means this is with a higher quality compared to the oEM factory installed oil filter, but Mann does not specify the material make of the filter however. Please click the link below for your reference. https://catalog.mann-filter.com/EU/eng/catalog/MANN-FILTER%20Katalog%20Europa/Oil%20Filter/HU%20718~5%20x (click the link mounting instructions)

Not sure what the question is, (sl320 oil filter by flees?)... I do recall that the manual recommends using a felt oil filter. I suspected that one would only get that at the dealer. The Mann Filter is a brand used by several OEM German car companies and a good filter. It is what I use on my 2008 E350. I think how often the oil and filter are changed is more important that what brand is used.

Hi Steve, I'm glad to assist you. Yes, and it is included with this filter. Click on the link below for direct ordering to take advantage of our ongoing discount and limited stocks. I hope this helps, and happy shopping. https://www.carparts.com/oil-filter/mann-filter/manhu7185x?can=CPAE1047_CSQA_20230622

Hi Tinh, Upon checking, on our product information is says synthetic material. Please check the additional information from our brand manufacturer's details. For more details please click the link below. MANN+HUMMEL is a global market leader in filtration technology, providing the automotive market with high-quality air and liquid filters. Synthetic filter media ensures excellent flow and filtration performance Compact, tough and resistant to extreme pressure and temperature Meets the industry’s highest requirements for quality and fitment https://www.carparts.com/oil-filter