AEM 21-499C: Elevate Performance with Cold Air Intake System Review

This is one of the best designed systems I have ever seen or used. The instructions are clear with pictures. Installs in less than an hour. Sounds good. AEM has exceeded all my expectations. Prestigious

Installed on my 2011 Altima Coupe (3.5). Easy installation and very nice full throttle sound! I've got an average 2-3mpg increase and as for the performance increase I can't say unless I'll spot it, but I'm sure there is! I also have a cat back exhaust and my car gets compliments on its sound. Listen.

Over the past 10 years I have installed aftermarket intake systems on 6 cars. This system was (to date) the best and best looking of them all. I have installed (2) Vara-Ram - (2) K&N systems (1) Weapon R and (1) Injen. It had without a doubt the best instructions and the fit and finish was perfect. This contributed significantly to the sound of the car. It offers slightly more power (about 6hp) - it comes with a dyno sheet for the specific vehicle application I have. All in all I would buy it…

Finally decided and bought this inlet. I am not disappointed and have received many compliments and smiles from the people who have ridden in my car. Sounds like a G35 at low revs. From around 4000 rpm it has a very deep rumble under the throttle. However, it's quiet when you want it. Installation was easy, taking about 1.5 hours with just one person and basic hand tools. The only complaint I have is that the heat shield rubbed against the brake fluid reservoir when first installed. However…