Bassnectar Posted January 14, 2014 Share Posted January 14, 2014 Just cut and changed my exhaust setup around Went from catless with a magnaflow fart cannon to a hi flow cat, + resonator borla exhaust, but I noticed no gasket came out of the flange of the catback. my downpipe is 3" and my catback is 2.5" This is a picture of the catback flange. The other flange is 3" pipe but the exact same bolt profile. I can hear a whistle when getting on it so I believe its a leak from the flange. Have not torqued it down as I do not know the value and we haven't fully finished welding the tip and muffler hangers. test drove it only because its a school night and I needed to get home. any input appreciated, first time ever changing exhaust components. (wasn't even expecting slip fit... ) http://i1155.photobucket.com/albums/p552/Taylor_Jay1/20140113_203922_4_zps5f1b3e3c.jpg Link to comment Share on other sites More sharing options...
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