Review on K&N Cold Air Intake Kit: Boost Horsepower for 2004-2015 Nissan/Infiniti 5.6L V8 (Armada, Titan, QX56) - 77-6012KP by Jamel Ochoa

I installed this air intake on my 2008 Nissan Armada SE. Installation took a little over an hour, but was relatively painless. I've filled up two gas tanks since installing it and have seen a 2.6mpg (not computer per gallon) increase in the balance sheet. At that rate, I calculated that it would take 7 months (6.8 to be exact) for the consumption to pay off. The growl you hear between 2500 and 4200 rpm is intimidating. Throttle response is slightly better. Cruising at 70mph, you don't hear the air intake at all, but the sound brings it to life. Overall a great product, fitting instructions could be better but if you are looking for better fuel economy and cool sounds you can't go wrong with this pick. Update March 19, 2021: Since installing my average MPG has dropped from around 12.5-13.2 (before installation) to between 15-19.6 now. It has almost paid for itself twice.