K&N oil filters are made with top quality high efficiency paper media that is able to filter 99% of all foreign material providing a more efficient oil clean. These filter have more element filter paper than many other filters on the market. K&N filters are a high flow design ideally suited for use with high end synthetic engine oil. The KN-139 fit Suzuki 400cc singles eg DRZ400.
If you hate been bombarded with unless crappy emails you should join our email list. Our marketing department is so overpaid and under worked you properly wont get any anything, but just in case you should join.