Question about cats and long tubes

So, I have a set of JBA long tubes and I have 3” 400 cell catalytic converters. My question is, will this throw a check engine light or will it run clear?

I have a DAP tune and a set of antifowlers ready if the cats and the tube don’t keep it clear

 

All depends, there isn't a clear cut ans. I ran cats with my ARH LTs and still had a code. Don't think DAP tunes that out automatically but could be wrong.

In either case your prepared to shut it off it sounds like.

 

@dirtydeeds is your go-to guy that has extensive knowledge when it comes to headers and exhaust on these trucks.

 

Give Keith Carty of Dirty Deeds Industries a call at 760-877-4234 and pick his brain on this. He will get you all set up and for the most affordable price out there!!