Quick view Sinister Diesel Sinister Diesel 13-18 Ram 2500/3500 6.7L Cummins Bypass Oil Filter System - SD-EOF-6.7C-13 Compare $497.89 $382.99 The oil system in your engine is crucial to the trucks performance and life. Keeping your oil clean is what it all comes down to and this 6.7L Cummins Oil Bypass Kit from Sinister Diesel is designed to do that better than your factory oil system. The... Add to Cart Add to Cart