Discussion in 'Performance & Fuel' started by MTM, Nov 7, 2011.
While high flow cats give me better fuel mileage?
your trucks current cats are just fine, hi flo cats are a joke, modern cats are good for 400hp.
Only reason to get hi flow cats is if you NEED to replace the stock ones or you find a great deal on some aftermarket ones.
X2....Unless you need to replace a bad cat the aftermarket ones are not any better the OEM cats.
Wow i'm very glad that i posted this.....glad i didn't buy cats
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