aFe BladeRunner Ported Ductile Iron Exhaust Manifold (46-40054) 4031 This allows for larger volume

This allows for larger volume whilst maintaining a smooth flow path

the car reaches boost immediately and pulls hard and consistently throughout the power band

Withstands Temperatures From -40°F to 257°F (-40°C to 125°C)

3 Bolt Exhaust Gasket for connection between catalytic converter & exhaust system

aFe BladeRunner Ported Ductile Iron Exhaust Manifold (46-40054) 4031 This allows for larger volumeBladeRunner Ductile Iron Exhaust Manifold (46 40054) by aFe. Replace the exhaust manifold on your Dodge diesel with the BladeRunner manifold. It was created to address a cracking problem with the stock manifold, but it's so far advanced compared to the stock unit, you should replace your OEM manifold even if there's nothing wrong with it. The BladeRunner manifold will not only last far longer, it will improve performance and lower exhaust gas