If you find oil stains at the turbocharger inlet or severe carbon buildup in your Duramax intake system, the original CCV system is likely the culprit. Our Duramax PCV reroute or CCV delete kit offer a clean and efficient solution—preventing oil mist from entering the intake manifold and protecting components such as the turbocharger and boost lines from contamination. These kits improve reliability, minimize blow-by effects, and help your engine maintain stable performance over the long term.