bulletproof diesel egr cooler
Devil Mountain Diesel - BulletProof Diesel Products. The BulletProof Engine Oil Cooler and EGR Cooler are a MUST for a reliable 6.0L. The EGR Cooler is a well known failure item - and the Engine Oil Cooler is like an insurance policy - one that protects your engine, bearings, turbo, injectors, etc - everything that comes in contact with your engine oil depends on that oil cooler …