Exhaust sound problems
#11
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Leaky manifold would do it if its bad enough! My buddy had that problem
#12
#13
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I have a 94 w/302. Put a flowmaster on and couldn't tell a diff myself. Took it off and cranked it up with just the 2 cats, same quiet sound. Ordered new y-pipe from summit and a hi-flow cat, reinstalled flowmaster and now I get sound! Seems the two cats are just too restrictive.