Warren McLeod

How could you tell, I am old school? LOL thanks for your advise - I will leave well enough alone. Wasn’t really concerned with fuel mileage, just wondering if it would help the engine breath and last longer. Again, thank you.

I have a 2017 Nissan NV3500 raised roof cargo van with the 5.6 litre engine & 7 speed auto trans. So far I am fairly happy with the van for the price. I simply believe there is more to this power train, for power & fuel economy! Question: has anyone added “dual exhaust” and installed a better “air intake” system to allow this engine to breathe better and help with fuel consumption (empty/loaded/towing)?? I am will to do what needs to be done, to make this van run as best it possible can. Any help is appreaciated.