rness Exhaust EGR Emission System Exhaust Brake / Silencer / Pipes Exhaust Manifold Exhaust Turbocharger System Filters Air Duct Oil / Air / Fuel Fuel...rness Exhaust EGR Emission System Exhaust Brake / Silencer / Pipes Exhaust Manifold Exhaust Turbocharger System Filters Air Duct Oil / Air / Fuel Fuel