2004-2010 GMC Chevrolet 2500 3500 HD 6.6L Duramax Diesel Turbo Piping Kit CCV PCV Reroute Kit GenericProduct Overview: Vents crankcase blow by, decreasing oil deposits in the engine. Prevents boot soak, intake gumming, and other issuesenhancing the longevity of engine parts. Eliminates the need for the crankcase box on top of the engine, freeing up space for other activities under the hood. Venturi style design removes the need for restrictive baffles. Virtually no oil lossno worries about puddles under your truck. Streamlined routing with no angles,