Flange trouble between DP and catback. help...
We welded in a new high-flow cat on my exhaust and also my friends exhaust this weekend. I replaced the flange on my dp and catback with a v-band flange kit(works awesome). The flange on my friends is the standard 2 bolt flange. For some reason since we took it off, no matter how much you tighten the bolts, there is air getting out on both sides opposite the bolts.
Should I add another gasket or make a permatex gasket like Dean said and then bolt it down and let dry?
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