I have noticed a little, seems to still have plenty of power. My MPG has gone from 13.2 down to 12.8, other than that no big deal. I would say since I already had 37's it was not drastic. But if you went from 35's to a true 37 I would think it would be a lot more noticeable. On the upside, and this may be in my head, the truck feels more stable. Very little road noise increase. I ran 37" Nitto Trail Grap's on my 2020 so these feel very similar and familiar. I would admit that these are probably not for everybody, but it works for me. They seem to to work just fine on backroads and fire roads which is most of my off-roading.