I am going to make custom exhaust for my m50 non vanos. I need to know what size, I dont want to run duals. I want to run a single pipe, what size do i need? I got some saying 2.5 is enough i got some saying dual 2.25 i got some saying 2.5 dual. Come on what is the best setup for a m50 non-vanos.
Thanks
Thanks
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