Feature 1Improve fuel efficiency and reduce carbon deposits, save fuel consumption and save resources. 2Committed to designing for racing cars, redesigned and remodeled the oil circuit, really reliable. 3It can increase the engine power to output more horsepower and effectively increase your driving speed. 4Improve the throttle response speed, make the throttle response more sensitive and operate faster. 5Using highquality 6061 aluminum alloy material, can withstand harsh environments.Item Type: DieselRerouteKitMaterial: 6061 Aluminium AlloyFitment:Fit for GM Duramax 6.6L 2004.5-2010 Fit for Chevrolet Silverado 3500 06 Fit for GMC Sierra 3500 06Fit for GMC Sierra 2500 HD 3500 HD 06-10 Fit for Chevrolet Silverado 2500 HD Classic 3500 Classic 07 Fit for GMC Sierra 2500 HD Classic 3500 Classic 07 Fit for Chevrolet Silverado 3500 HD 2500 07-10Fit for GMC Sierra 3500 HD 07-10 .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List4 x Resonant Plug1 x Tee1 x Reroute PortNoteProfessional installation is recommended.