This question has probably been answered before. I searched and haven’t seen anyone talk about this idea. I have 2017 gen 2 3.5eb. I still have about 2 years left on my warranty so I’m not looking to get a tune, yet. In VA they just do a visual inspection for a Catalytic converter. No emissions. Cel doesn’t matter here. Here’s my idea. Catless downpipe w/02 defouler and 4” exhaust. If I get a 4” cat installed on vbands where the resonator is on the exhaust. I can remove it and replace with a straight pipe section when I want for “off-road” use. Will this cause problems with the cat on, that far down from where the factory cats would be and with cat off would it cause Over speed turbo issues or in general truck running like crap issues?