PPI specializes in oil management technologies - providing economical and environmentally friendly products. Our patented Bypass Filtration System is an innovative advancement that super-cleans motor oil, providing better mileage, longer engine life and fewer oil/filter changes. Payback is under a year. Very easy to install, requires no special tools, knowledge, nor engine modification. We also have on-board oil cleaning systems for serious on and off-track racers, off-roaders, and engine builders. We sell internationally. We recently teamed up with the Donaldson Company to sell world-wide and are working with them on developing new technologies and applications beyond oil management.