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High flow cat worth it?

9122 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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w/o my secondary cat i dont throw a code. i just put a pipe where the cat used to be. there is an o2 sensor but no codes are thrown. and so be honest it smells like shit when u first start it up due to the unburned fuel haha. i got a high flow on ebay for cheap so i think im gonna put it on to make that smell go away. smells like an old carb engine kinda
I have NO secondary right now. thats y i was wondering if i should even put a high flow on because im not throwing a code and its loud as shit and sound pretty good
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
i got a flowmaster 40 series on there
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