Latest News

Nissan 350Z and Infiniti G35 Performance Lifetime Air Filter Released

Air Filter for Nissan 350Z, Infiniti G35 and G37
Air Filter for Nissan 350Z, Infiniti G35 and G37
K&N Engineering has designed and manufactured replacement air filters for over 38 years. K&N offers over 2,400 high-flow air filters that fit most modern passenger vehicles. K&N designed a replacement air filter, part 33-2399, that fits the following vehicles:

2016 NISSAN 370Z 3.7L V6 (2 required)
2016 INFINITI QX50 3.7L V6 (2 required)
2015 NISSAN 370Z 3.7L V6 (2 required)
2015 INFINITI QX50 3.7L V6 (2 required)
2015 INFINITI Q60 3.7L V6 (2 required)
2014 NISSAN 370Z 3.7L V6 (2 required)
2014 INFINITI QX50 3.7L V6 (2 required)
2014 INFINITI Q60 3.7L V6 (2 required)
2013 NISSAN 370Z 3.7L V6 (2 required)
2013 INFINITI G37 3.7L V6 (2 required)
2013 INFINITI EX37 3.7L V6 (2 required)
2012 NISSAN 370Z 3.7L V6 (2 required)
2012 INFINITI G37 3.7L V6 (2 required)
2012 INFINITI G25 2.5L V6 (2 required)
2012 INFINITI EX35 3.5L V6 (2 required)
2011 NISSAN 370Z 3.7L V6 (2 required)
2011 INFINITI G37 3.7L V6 (2 required)
2011 INFINITI G25 2.5L V6 (2 required)
2011 INFINITI EX35 3.5L V6 (2 required)
2010 NISSAN 370Z 3.7L V6 (2 required)
2010 INFINITI G37 3.7L V6 (2 required)
2010 INFINITI EX35 3.5L V6 (2 required)
2010 FIAT SEDICI 1.9L L4 Diesel
2009 SUZUKI SX4 1.9L L4 Diesel
2009 NISSAN 370Z 3.7L V6 (2 required)
2009 NISSAN 350Z 3.5L V6 (2 required)
2009 INFINITI G37 3.7L V6 (2 required)
2009 INFINITI EX35 3.5L V6 (2 required)
2009 FIAT SEDICI 1.9L L4 Diesel
2008 SUZUKI SX4 1.9L L4 Diesel
2008 NISSAN 350Z 3.5L V6 (2 required)
2008 INFINITI G37 3.7L V6 (2 required)
2008 INFINITI G35 3.5L V6 (2 required)
2008 INFINITI EX35 3.5L V6 (2 required)
2008 FIAT SEDICI 1.9L L4 Diesel
2007 SUZUKI SX4 1.9L L4 Diesel
2007 NISSAN 350Z 3.5L V6 (2 required)
2007 INFINITI G35 3.5L V6 F/I - Sedan (2 required)
2007 FIAT SEDICI 1.9L L4 Diesel
2006 SUZUKI SX4 1.9L L4 Diesel
2006 FIAT SEDICI 1.9L L4 Diesel

K&N air filters designed to increase horsepower and acceleration while providing excellent filtration. The 33-2399 air filter is a drop-in replacement air filter which means adding performance is as simple as replacing your disposable air filters with K&N lifetime air filters.  Two air filters will be needed since the Nissan 350Z and Infiniti G35 have two separate air boxes that each contain an air filter.  

The 33-2399, like all of K&N's replacement air filters for street vehicles, is covered by our famous K&N Million-Mile Limited Warranty.  Washable and reusable, this filter will be the last air filter your Nissan 350Z, Infiniti G35 or Infiniti G37 will ever need.

To find K&N products for your Nissan 350Z or Infiniti G35, G37 use the K&N Application Search. To find a K&N dealer near you visit the online K&N Dealer Search.

2003 to 2006 Infiniti G35 Owners Can Add 5.1 HP with K&N's Performance Air Intake System

The Infiniti logo stands out at the front and rear of the G35. A large chrome grill stretches from large stacked headlight to large stacked headlight for a different look to complement the racing-inspired platform and advanced technology.

Air Intake for 2003, 2004, 2005 and 2006 Infiniti G35
Air Intake for 2003, 2004, 2005 and 2006 Infiniti G35
K&N Engineering has designed a high-flow performance intake system (69-7081-1TS) in powder coated silver for the 2003 Infiniti G35 sedan 3.5 liter V6 engine, 2004 Infiniti G35 sedan 3.5 liter V6 engine, 2005 Infiniti G35 sedan 3.5 liter V6 engine and the 2006 Infiniti G35 sedan 3.5 liter V6 engine. The K&N air intake design provides excellent air filtration and lower restriction than the factory air box system resulting in an immediate power gain.
Air Intake Installed in 2003 Infiniti G35
Air Intake Installed in 2003 Infiniti G35

Power Gain Chart for Infinity G35 with K&N Air Intake
Power Gain Chart for Infinity G35 with K&N Air Intake

K&N dynamometer testing shows on the 2003 Infiniti G35 shows a 5.1 horsepower gain @ 5700 RPM. K&N removed the OE air box and intake and built an intake tube to open up the breathing capacity of the Infiniti to get the full amount of air it needs.

The round universal K&N air filter (RU-4960) allows free flowing air into the intake tube. The factory fresh air duct is utilized to deliver a supply of fresh air to the K&N air filter.

The 69-7081-1TS can be easily installed in 90 minutes or less and is backed by the K&N Million Mile Limited Warranty.

Find K&N products for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer in your part of the world.

K&N Releases Small Universal Cone Filter Perfect for RC Cars

K&N Universal Air Filter RU-5162
K&N Universal Air Filter RU-5162
K&N Engineering designs and manufactures a wide variety of universal air filters to fit just about any application. Our filters are constructed with ultra-strong molded pliable rubber flanges which allow for secure attachment.

K&N designed a new round tapered universal (cone) filter, RU-5162. It can be used as a universal crankcase breather vent filter, as an air filter for many gas motor RC cars or for any other application that needs an air filter with the dimesions listed below. K&N Filters provide excellent filtration to keep the internals free from debris. The RU-5162 comes with a 1/2 oz. pillow pack of K&N air filter oil.

This universal cone filter is also a replacement breather filter for K&N’s YA-6601-T ATV Power Lid. This Power Lid fits the 2001 to 2005 Yamaha YFM660R Rapter 660.

The RU-5162 has a 1 1/3" base outside diameter and a 1" top outside diameter. It is 1 1/8" in height and has a flange with an inside diameter of 1/4" and outside diameter of 5/8".

K&N Air Filters are washable and reusable. K&N filter cleaner is available to restore air flow efficiency so your air filter performs like new. It works to dissolve the dirt build up and old filter oil, and can be washed away with water.

Find K&N Universal Air Filters for your needs using the Universal Air Filter Search by Dimension on KNFilters.com. To find any K&N product for your vehicle use the Application Search.

2004 to 2008 Nissan Maxima and Altima Owners Can Add 7.43 HP with K&N's Air Intake System

The Nissan Maxima shares essentially the same engine with the Nissan Altima. Both have V6 engines, known for acceleration. Punch the Maxima or Altima in any gear and it takes off.

Air Intake for Nissan Maxima and Altima
Air Intake for Nissan Maxima and Altima
K&N Engineering has designed a new high-flow air intake system (57-6015) for the Nissan Maxima and Altima 3.5 liter V6 engines. *See applications list below. K&N dynamometer testing shows a 7.43 horsepower gain @ 5001 RPM for the 2005 Nissan Maxima 3.5 liter engine.
Air Intake Installed in Nissan Maxima
Air Intake Installed in Nissan Maxima

Power Gain Chart for Nissam Maxima with K&N Air Intake
Power Gain Chart for Nissam Maxima with K&N Air Intake

The K&N cold air intake design provides excellent air filtration and lower restriction than the factory air box system resulting in an immediate power gain. A round tapered chrome top high flow air filter (RC-4180) allows free flowing air into the intake tube.

The heat shield assembly attaches to the intake tube. It isolates the K&N air filter from the hotter temperatures around the engine as it allows it to receive a consistent flow of fresh cooler air.

The crank case vent attaches to the rotationally molded intake tube. The 57-6015 can be easily installed in 90 minutes or less and is backed by the K&N Million Mile Limited Warranty.

*Applications are as follows:

2008 NISSAN MAXIMA 3.5L V6
2007 NISSAN MAXIMA 3.5L V6
2006 NISSAN MAXIMA 3.5L V6
2006 NISSAN ALTIMA 3.5L V6
2005 NISSAN MAXIMA 3.5L V6
2005 NISSAN ALTIMA 3.5L V6
2004 NISSAN MAXIMA 3.5L V6
2004 NISSAN ALTIMA 3.5L V6

Find K&N products for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer in your part of the world.

K&N Product Sponsored Racer Honored at Performance Racing Industry Trade Show

World of Outlaws Champion Donny Schatz was awarded the Economaki Champion of Champions Award at the 20th Annual Performance Racing Industry Trade Show in Orlando, Florida.

Donny Schatz earns Economaki Champion of Champions AwardDonny Schatz earns Economaki Champion of Champions Award
Schatz recognized for 2007 racing season at PRI
Schatz recognized for 2007 racing season at PRI
The Fargo, North Dakota resident was recognized for his success during the 2007 racing season as the racer who best excels in his role as a leader of the sport.
Schatz and the ParkerStore Team use K&N Engineering Products
Schatz and the ParkerStore Team use K&N Engineering products
Donny Schatz wins Kings Royal during Month of Money
Donny Schatz wins Kings Royal during Month of Money

“This is a huge honor,” said Schatz. “To be mentioned with guys like Jimmie Johnson, Sebastien Bourdais, Dario Franchitti and Tony Schumacher is quite an honor. We did the best we could every night and had one of those unbelievable seasons. This is something I’ll never forget.”

Schatz had a career-best season winning 19 World of Outlaws features, a second WoO championship title and a second Knoxville Nationals triumph. He swept the sports “Month of Money” this past summer and won his first Kings Royal at Tony Stewart’s Eldora Speedway. Schatz also won the Don Martin Memorial Silver Cup at Lernerville Speedway, the Cleveland Brothers Williams Grove Summer Nationals and the Super Clean Knoxville Nationals. Later in the season Schatz won his fourth Williams Grove National Open and became the first driver to win all five of those races in the same season.

Schatz and the ParkerStore Team use K&N Engineering products at every race. “We are fortunate to work with such great product sponsors like K&N Filters,” said Schatz. “Without K&N we wouldn’t be where we are.”

Schatz will begin pursing his third World of Outlaws championship in February at the 37th annual DirtCar Nationals at Volusia Speedway Park in Florida.

Follow Donny Schatz throughout the racing season at the K&N news site. Find K&N products for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer in your part of the world.