Oberg Filters have been protecting racing engines for over 20 years. There have been several different types of Oberg Filters but the original 600 series seemed to be the most popular. This is why we have returned to the original 600 series style but with a modern upgrade. Instead of cast aluminum, the filters are CNC milled from 6061 T-6 aircraft grade aluminum. This allows for greater strength while keeping the weight down. With 28, 60 and 115 absolute micron screens, we can find the perfect combination to protect your racing vehicle from fuel system to differential. Our most popular 6″ filters come in Black, Red, Blue, and Gold to add a little color to your application.