03 escalade esv been considering removing the cats, now will this throw a code or.......

 

Yes it will, you can have the code turned off by someone who tunes. Do you have inspections?

 

No inspections over here, this is a maybe for me still not sure yet. How much of a sound difference will it be, I cut them off my 5.3 yukon and there wasn't much which I was glad. The smell it gave off sucked though.

 

Sound differance depends on the muffler.

 

Just the stock muffler don't want the truck loud, Any difference on a tbss muffler to my stock esv muffler