Just to chime in here for our '21 Passport. I didn't notice any difference in noise after adding the cross bars. It's hard to tell about fuel economy because I put them on with around 4,000 miles on the vehicle so it wasn't broke in yet. If it changed any, it was so insignificant that we couldn't tell the difference. I did also put them on our '16 Pilot when it had around 20K on it and there was no whistle or any other noise until we would mount our Yakima carrier on it. We did not notice any difference in fuel economy with it and I kept good records on our fuel usage so I feel safe in telling you that any difference you can tell will be negligible.