Shearer Fab is glad to offer a direct tubular replacement for your factory manifold! This piece has proven to make +21whp/19ft-lbs and increase trap speeds over a heavily ported factory manifold.
Lots of thought went into this during the development and conception stages. This is the highest quality replacement manifold available for your EVO, PERIOD! You will NOT find the shortcuts that our competitors make to ease manufacturing and also robs power.
•All runners have proper sized port entries into the manifold. The port size of the manifold is not smaller than the port of the head like some of our competitors. Don't believe them when they say it doesn't rob power, they are full of shit!
•Runners feature a smooth transition from port size to runner diameter. Most competitors use a radical transition that is machined into the head flange, not good!
•CNC Milled Stainless Steel Flanges.
•Relieved head flange for increased cylinder head sealing pressure.
•All flanges are machined flat after all welding operations to ensure a leak free seal.
•Thick wall stainless primaries expertly welded in house at Shearer Fabrications.
•Carries a life time warranty to the original owner.
•This is a direct replacement and works with all factory accessories!
Combine this with our replacement o2 housing to get the most power out of your stock frame set-up!
90-99 DSM
