K&N Performance Cold Air Intake System: Easy Installation, Engineered to Maximize Airflow, Boost Horsepower & Torque, 57-6012

I love this product. I gained horsepower, but most of all gained gas mileage. You have a true believer here and I strongly recommend it to everyone I know. I drive a 2005 Nissan Titan. It was already kind of an animal but now whew. Keep up the good work guys.

I installed your cold air performance intake on my 2008 Nissan Titan with the 5.6 Liter flex fuel engine. The difference in performance was immediate. The engine was smoother, it felt more powerful and proved to be more economical.  On a trip to Gulf Shores MS, I drove 429 miles at speeds around 70 mph and brought in 21.4 miles per gallon, the best the truck has ever given me. The city mileage increased by 1.5 but the travel mileage has been exceptional.

Just installed a FIPK in my 2006 Nissan Titan and wholly smokes, what a difference it made in the performance. Already have noticed a small increase in gas mileage too, don't know how much, but I'm not putting gas in every other day like I was before the installation. Great Product, Thanks for the excellent R&D, Dead On..

I am what you call a hard to impress person.  I am here to tell you I am more than impressed with the recent installation of my 57 series air charger kit on my 2004 Nissan Titan.  Somethings make a little difference as you add them on but this addition was HUGE!  The truck runs much stronger with a MUCH greater amount of mid range torque.  It's difficult to believe that Nissan would not go with such an awesome improvement from the factory to begin with.  K&N's Dyno chart showed just over 11 HP.  It has got every bit of that plus maybe a little more.  I am not quite sure what the added MPG will be yet but if its anything like the difference in HP I am sure I will be pleased at the pump.  Just one man's opinion but MAKE THE INVESTMENT......you won't be sorry. Awesome product!

Awesome! Easy to install took about an hour. My Titan sounds like a whole different truck. Would recommend 1000%

I am totally satisfied with my new intake, easy installation and instant results.

Great product. Very detailed instructions. Great service. Thanks.

Can't go wrong with K&N. Placed a cold air intake in all of my trucks, past and present.

Amazing sound, easy installation, very pleased with this product!

Install was uneventful, due to easy to read instructions. I was expecting a noticeable difference in the performance of my Nissan titan. It was not there. It is a loud sucking noise, and not too much else. Certainly not worth the price.