Hi Scotty, I have Nissan Armada 2015. I noticed one thing in my Nissan. Has been there from quite sometime but not much affected my daily driving. However wanted to share with you. When my rpm goes above 3500 it doesn't give much power. It just creates humming noise instead of regular acceleration. But if I drive under 3500 it works perfectly fine. Wondering it's program that way for safety purposes or some issues? I usually don't rev that fast but wondering it could be low rpm and higher gear vehicle.No check engine light on. Even normal driving conditions on freeway like going 80-90 mph also not affected. It usually handles quite well under 3000 rpm on freeway. I usually don't drive fast but interesting to see why it's not giving power increase after 3500 rpm. Any insight would be helpful.