How can I quiet down my exhaust by: jct842 - Jul 28, 2012 23:37:20 GMT -6 Back to Home Reply Quote Select PostDeselect PostLink to PostBack to Top Post by jct842 on Jul 28, 2012 23:37:20 GMT -6 You might try to neck the outlet down to the same size as stock and run it out a inch or two.. Straight through ones do not have much back pressure. john