I have been fond of Donaldson filters for my heavy duty needs for quite a long time. I am using a bypass on my Detroit, but it is the FS2500 one. Primarily got it because it came as a complete kit setup specifically for my engine and truck combination so was a simple, seamless install. I wasn't interested in turning a bypass installation into a Popular Mechanics project. And it does a good job and is cost effective. They say to change the bypass filter every 10,000 miles, but I take them over twice that long with similar results. It was a balancing act between installation and cost down the road.