Bullet Proof Diesel recently introduced its patented Engine Oil Cooler with the factory oil filter option. You can now remove your stock engine oil cooler while keeping your factory oil filter. The Bullet Proof Diesel Engine Oil System replaces the stock oil cooler with an air-cooled, real-world-tested, external oil cooler.
The upgraded HPOP filter built into the Bullet Proof Diesel Engine Oil Block
maximizes coolant flow to the EGR cooler to prevent it from overheating. Engineered to fix your engine right, prices start at $1,595, with the cold weather version available for $1,745.