I have no secondary cat (one under the cab of my truck) i got a flowmater 40 series and its dumped right after. right now w/o the cat is super loud but sounds mean, would a high flow cat be worth putting on performance wise? and would it quiet it down a bit?
yea like I said
if U add a high flow where the secondary was, it will quiet it down
if u replace the OTHER cat with a high flow cat, it will get louder
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