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

Excellent quality product. I have it on a 2013 Nissan Titan pro4x. I used to install a cheaper brand and my check engine light would go on and off about every 50 miles giving a p0300 code. I removed the cheap brand and put this product on and the check engine light has not been on since I installed it. Installation is fairly easy for anyone with basic mechanical knowledge. It definitely added a bit more torque to my car, but in terms of gas mileage I didn't notice a huge difference. It also gives your truck an awesome growling sound.