4" Flowmaster merge and cutout review-vids
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There's the added resistance and friction of running 2 pipes vs. one. Someone correct me if I'm wrong, but I'm told 1-4" pipe will possibly flow more than 2-3" pipes due to the additional drag on the increased surface area. Then there's the added weight.
Last edited by Steve Gunn; 06-13-2011 at 07:14 AM.