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High flow cat worth it?

9121 Views 21 Replies 9 Participants Last post by  JeremyJ
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?
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being high flow it will still help with the performance and it will quiet it down a bit.

in mine i did have 2 gen 2 viper cats and no mufflers. it was pretty darn quiet till you got on it.
thats the only cat i have under the truck. the other 2 come right off both manifolds and are the size of my fist they are tiny. im not going to mess with those
you will be fine with just the 2 cats...my wifes 4.7 has them just after the manifold as well, but never came with a third cat. just find a nice muffler.
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