the M1 filter application hotline and they told me that the M1-204 has been de-listed for the S4 application due to insufficient thread grasp issues. Has anyone had any problems with this filter on the S4 (or any other VW/Audi 2.8 litre) application? I bought some of these filters on sale and haven't used them yet as I am still under warranty and have issues with my dealer (so I only use OEM filters for now). Just curious if others have actually used these filters and what your experience was.

Thanks in advance for any input!!!