M50 non vanos.

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  • Mystikal
    Moderator
    Wheel Fitment Expert
    • Nov 2003
    • 9602
    #16
    I guess we should also note here for the inexperienced that the quality of the bends and general layout of the piping also changes everything. If you have good mandrel bends and a relatively straight path, 2.5" is plenty for all NA I6's. But if you're crush bending and have a compromised setup, I'd go 2.75" on a 3.0/3.2.

    Jay

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      • uberCerealkiller
        Wrencher
        • May 2006
        • 221
        #17
        ok , i'm planning on running a dual side exhaust on my swap, what size pipes should i use for the duals? Also planning on it being straight piped with a stock or aftermarket cat, no muffler though. (keeping the cat to pass very easy Chattanooga Emissions)
        Originally posted by Beastolizer
        what is the difference between the 12 LED and 6 LED and 24 LED?
        Originally posted by norcalE30
        you may want to sit down, this is complex...
        one has 6 LEDs, one has 12 LEDs, and one has 24 LEDs

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          • 0000000000
            E30 Addict
            • Nov 2006
            • 473
            #18
            2" dual.

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              • 0000000000
                E30 Addict
                • Nov 2006
                • 473
                #19
                Im trying to find the right size exhaust for an M50 NV, and this is what i came to: ebay header to a in the middle of the car, than with two at the end all with 2" dual pipes?

                What do you guys think?

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