Stock precats vs hi flow cats
03-05-2014, 11:14 AM
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Stock precats vs hi flow cats
I already removed my rear cats on my 2002 5.4 and im just wondering if there is any advantage to replacing the pre cats with high flows, will they make my truck louder? will it be more free flowing and efficient? or wouldn't it be worth the buy and shop charges to have them installed. Thank you!
