aFe Power 46-40024 BladeRunner Exhaust Manifold (GM) (Non-Carb Compliant)

Machined Ports: These manifolds have both the inlet and the outlet ports machined to match the factory gaskets. This allows for maximum flow, without compromising gasket performance. Auxiliary Ports: An Exhaust Gas Temperature (EGT) probe port is incorporated into each manifold for easy installation of gauges or testing equipment. There are three additional cast in bosses provided to allow for alternate testing points. Hassle-Free Installation: These manifolds are compatible with the stock up-pipes, which allows the manifolds to be installed without having to remove the turbocharger down-pipe or the up-pipes. Note: This system is not CARB exempt at this time and is not legal for sale in California or use on vehicles registered with the California Department of Motor Vehicle. Fits: 2001-2016 Chevrolet Silverado 2500HD/3500HD V8-6.6L (td) Duramax, 2001-2016 GMC Sierra 2500HD/3500HD V8-6.6L (td) Duramax.

• Outflows the factory exhaust manifolds by 6%, improving performance and throttle response
• Eliminates the flow restricting pinch of the factory drivers-side manifold
• 1/8" NPT exhaust gas temperature ports (EGT) ports are incorporated into the exhaust manifolds for gauges or testing equipment
• Durable cast ductile iron construction
• This product is not CARB exempt at this time and is not legal for sale in California or use on vehicles registered with the California Department of Motor Vehicles