System 1 BILLET Spin on Oil Filters are made from the finest BILLET aluminum material and are Black anodized for a durable and long lasting finish. All of System 1’s filter elements are made of stainless steel and can be cleaned and reused for many, many years of service. Using the element as a service tool, you can inspect and detect early warning signs of premature engine problems, which allows you to fix the problem before it becomes a major problem. Most of our filters (unless noted) comes with universal threaded adapters and will fit most Chevrolet, Ford and Chrysler applications. We also have Metric filters for late models spin on applications, including 3″ diameter import models too. System 1 also manufactures a complete line of Diesel Oil Filters for Pickups and Over the Road Trucks also.