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Message: <blockquote data-quote="Lee12609" data-source="post: 748124" data-attributes="member: 12415">from what i can tell there are 3 different PI intake manifolds.ford originalsdormansford replacementsthe OE ford pieces have no webbing on the runners and the runners are visually larger/rounder.the dormans have the webbing and the runners are noticeably skinnier like the picture above.the ford replacements usually have an M on the flat between the 2 middle runners, that M is a motormite trademark, which means the replacements are most likely made by motormite, and motormite IS dorman. i can post a picture of all.i have no first hand experience on a dyno between the 3 but those that have only see a couple horsepower difference between the 2 (i say 2 because to me the ford OE and ford replacements with the M are essentially the same). i personally will only buy original equipment ford pulled from a PI car with the original intake still.give me a minute to host all the pictures, with the injectors in the way above its hard to tell if its a ford replacement or dorman, either way, same thing.</blockquote>