How restrictive are stock 5.7 cats vs aftermarket "high flow" cats when using shorties?
gapi · Registered 2013 R/T Joined Jan 30, 2020 · 507 Posts #2 · 4 d ago Only show this user Not very. They flow well.
Gg2684 · Registered Joined Aug 21, 2021 · 680 Posts #3 · 4 d ago Only show this user High flow cats don’t necessarily mean more air/power. If you’re running crazy horsepower, high flow cats will better handle the heat etc. that would soak factory or smaller cell converters.
High flow cats don’t necessarily mean more air/power. If you’re running crazy horsepower, high flow cats will better handle the heat etc. that would soak factory or smaller cell converters.
MiHiHemi · Registered Joined Oct 3, 2016 · 2,286 Posts #4 · 4 d ago Only show this user Save the coin. Stock cats are fine.
