Help the Newb: Headers w/ one set of cats, pass emissions?

Just bought a 2018 Tundra Limited w/ the 5.7. From what I'm seeing, adding a set of JBA LT headers will still pass emissions as long as you have one set of cats, is that true? Can you go w/ high flow, or do they need to be stockers? I'm assuming that if it passes emissions, you wont' have any check engine lights.

Thanks in advance.

 

High flow cats generally won’t pass emissions. They do just enough to cut the smell and fuel vapors. Assuming you place the cats in the right area and function well, then you should get close to pass emissions. Passing emissions and not having a CEL are not exclusive. You can not have a CEL and still not pass emissions.

 

@dirtydeeds exhaust god

 

What state are we trying to pass emissions in?

 

What Keith said.. if youre in CA you will fail the visual inspection with just two cats.

 

Can you just get the JBA midpipes and get an exhaust shop to put the factory cats on?

 

It's NC, I believe it's just the OBD2 plug and not the sniffer.