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High flow Cat

666 Views 3 Replies 4 Participants Last post by  Blackchevy
How much better is a high flow cat compared to a regular one? Do you get more HP and louder sound?
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i got 2 magnaflow highflows because i thought it would make it louder but on my truck its not as loud as it used to be
mine was louder to start, right after i put it on, but it has quited down now. supposedly it gives u a bit more power.
I dont beleive cats have much of an effect on the exhaust note but the High Flow cats do just that, move more air!
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