Review on Mobil 1 M1-301 Long-lasting Performance Oil Filter by Tyler Gannamani

Yes, it's huge, but it fits early FJ Cruisers with OHMO. Search the FJCruiserForums website, you will see many people using it. An unbeatable option just before installing a remote racing system with filters. I've been using them since I bought them in 2008. IMPORTANT: The width of the base is 3.8 inches. Obviously they are not 2 inches. The information on this page is incorrect. I have measured repeatedly and they are approximately 97mm in diameter. They still fit the FJ, unlike my previous favorite, the K&N HP-3001, which must have changed tooling because the K&N is now only a fraction of an inch wider. and is no longer suitable for FJ. Shame. I used to love the 1 inch nut welded on top that made removing the K&N so easy.