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Your cart is empty. K&N air intake systems are engineered for increased performance, outstanding durability, and sleek aesthetics—and are available in an assortment of finishes and powder coatings. K&N’s state-of-the-art High-Flow Air Filter helps to shield your engine from contaminants, while a meticulously engineered aerodynamic tube design contributes to a guaranteed increase in horsepower and torque. K&N air intake systems are designed to improve acceleration, towing, and throttle response while providing world class protection for your engine. Our intakes are dyno-tested and provide more airflow compared to OEM intake systems. K&N intakes are easy to install and maintain with air filter cleaning required only every 100,000 miles. Replacement Air Filter: RU-4990
Vehicle Fitment: 2013 NISSAN Altima Coupe; 2007-2012 NISSAN Altima
Ryan Doherty
Reviewed in the United States on July 31, 2024
Instructions were a little here and there but we figured it out and it looks and sounds incredible especially at 3k+ rpms. Startup is slightly more aggressive as well, and even more when cold.
Cory
Reviewed in the United States on April 14, 2023
Unfortunately One of the Hose clamps was too small and it was missing a nut but other than that directions were super simple and it fit pretty much perfect. So far better throttle response and it sounds amazing. It does get pretty hot near the filter so i might need to add some wrap to the heat shield.
sven
Reviewed in Canada on September 26, 2019
Came in the main very fast,Installation was very simple, definitely notice a sound improvement, did have a low idle after it was installed however that was solved by replacing the PCV valve. Would definitely recommend to anyone wanting to modify there car.
Brent
Reviewed in Canada on November 15, 2019
Wouldn't buy at full price, bought mine when it was on sale for $198. Small increase in fuel economy if you drive normally, good intake sound when you push your car hard
Miles Kicks
Reviewed in the United States on March 12, 2018
Installed this on my 07 2.5 Altima. I definitely noticed a slight power gain, and I love the sound. You only really start to hear it after 3k rpms. After first installing it, you may find yourself slamming the gas to get to 3k rpms just to hear the beautiful sound it makes, but after you get over that phase and start driving normally, you'll notice a slight increase in MPG. Overall I say it was definitely worth the money.
Customer
Reviewed in the United States on April 6, 2016
Driving my 09 altima with k&n air intake for over a week now and i have to say it gives an extra boost on accelaration. Also i noticed it gives extra gas mileage. Sound is nice and i love it.Right now im looking to pair it with stillen exhaust system
Bryan
Reviewed in Canada on September 26, 2015
Excellent product, install only was painful for someone who isn't familiar under the hood of a car. Other than that definitely felt improved response as well as sound.
Matthias
Reviewed in the United States on March 8, 2015
Throttle is much more responsive across entire power band and has a noticeable gain in acceleration from start.The sound is the deeper at lower power levels, but not louder. The only "noise" (that some have complained about) is when under aggressive throttle. At which point this I4 engine resembles the sound of an angry V8 which some people might find irritating. However, at regular cruising (under 2500rpm) the engine sounds no different.Overall, great buy and well worth it.Highly recommended.
Suliman Al-Ashara
Reviewed in the United States on February 4, 2013
I was surprised by the poor performance of the piece, knowing that I requested specifically for the Nissan Altima, I wish from the company review the product and make sure my words.
Nathan P. Russell
Reviewed in the United States on May 11, 2012
Installed this on my 2008 Nissan Altima 2.5S. Quick install, took about 90 minutes. Caution, do not over tighten plastic parts. I did and sheared the threads off in the hole. After a quick run to Home Depot's plumbing section, I now have metal parts there.Performance gain is noticeable (above 3K RPMs / Freeway speeds). Improved gas mileage from 26 mpgs to 28.5 mpgs. Has a throaty grrrr like there's a angry tiger in the engine. From 70 MPH to 100 MPH (passing) it just moves. Love it.
Eric
Reviewed in the United States on August 1, 2011
Be carefull when installing the crankcase vent adaptor. They send you a plastic one that breaks easily. I contacted K&N and got a replacement part with no problems. This kit was easly to install with the instructions provided. After installed, you can really notice the throttle response is quicker and a little bit of hp gain. There is definate increse in sound coming from under the hood due to more air flow. I would recommend this product to anybody that wants a more agressive sounding car.
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