AFE 46-40044-1 BladeRunner Ported Ductile Iron Exhaust Manifold 94-98 Dodge 5.9L Cummins 2019 GMC 6.6L Duramax L5P aFe POWER recommends that only

aFe POWER recommends that only Sport or Sport + settings are used during towing

Also included are four 1/8" NPT port which allow for the addition of optional sensors or water-methanol injection

5" Diameter Polished Intercooled Tip: Finishing off the exhaust is a 5" diameter

Polished Tip Option: Finishing off the exhaust is a high luster

This allows for greater cooling than competitors units

AFE 46-40044-1 BladeRunner Ported Ductile Iron Exhaust Manifold 94-98 Dodge 5.9L Cummins 2019 GMC 6.6L Duramax L5P aFe POWER recommends that onlyIncrease your exhaust flow right at the head for improved turbo spool up and lower EGT's (Exhaust Gas Temperatures) by upgrading with this ported exhaust manifold from AFE. If you're the owner of a 12 Valve Cummins, you're probably aware that the stock manifolds are known for cracking on the underside. Until now, the cure has been to install a multiple piece manifold that allows for expansion contraction joints. Unfortunately, these joints are also