I can be great stuff if you plan to use it for extremely long drain applications, but Mobil 1 Extended Performance performs well in many applications as well while being on the shelf everywhere. You can get the Mobil 1 filters to match at many parts stores, they are the same as the K&N filters other than the K&N has the nut on the end to make it easier to remove. Any chance your research included Bob Is The Oil Guy forums? Lot's of good information there.