cut outs on y pipe?
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Last edited by highway21; Aug 27, 2008 at 10:52 PM. Reason: forgot to add link
https://ls1tech.com/forums/generation-iii-external-engine/973975-new-exhaust-3-5-single-exhaust-w-single-chamber.html
https://ls1tech.com/forums/showthread.php?t=973975


you could burn up ur o2's easy....honestely one in the i-pipe whould b fine