K&N's replacement air filters for the 2009 Nissan GT-R R35 are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for virtually every vehicle on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be THE LAST AIR FILTER YOUR VEHICLE WILL EVER NEED. 33-2413 Product Specifications Product Style: Unique Air Filters Height: 2.313... Less

K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K&N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16" (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.

Air Filters - Universal Fit by K&N. K&N Custom Air Filter Assemblies Features - Order with confidence! AutoAnything is an authorized K&N dealer. With us you get the genuine factory product, plus full manufacturer warranty & support. Dress your carbureted engine with a classy, energetic K&N Custom Air Filter Assembly. Comes with everything you need to completely replace your restrictive factory air filter assembly. The brilliant chrome top plate of your K&N Custom Air Filter Assembly is emblazoned with the distinct K&N logo. The included K&N round air filter utilizes K&N's famous high-flow pleated cotton gauze design for immediate horsepower and fuel efficiency gains. K&N Custom Air Filter, KN Custom Size Air Filters - 7", 9", 11" & 14" - Videos, Installations & Reviews. For the top... Less

NON-RESTRICTIVE - dust and dirt will not clog the filter because they remain on the outside of the element FREE-FLOWING - despite the outer layer of trapped dust and dirt, air flow between the particles remains virtually unaffectedL

NON-RESTRICTIVE - dust and dirt will not clog the filter because they remain on the outside of the element FREE-FLOWING - despite the outer layer of trapped dust and dirt, air flow between the particles remains virtually unaffectedL

K&N air filters provide superior filtration of harmful contaminants while maximizing the airflow for better performance. That?s why they?re the racer's choice. They should be yours, too.A K&N filter flows 75% better than the same size paper filter, allowing your engine to breathe deeper and make more power. When it gets dirty, just wash, rinse and re-oil -- you're good for thousands more miles. Each element is pre-oiled and ready to install.Don?t settle for imitations?buy the best. Some companies offer products that look like K&N filters, but don?t provide the same level of performance and protection. K&N manufactures stock replacement air filters to fit most vehicles on the road today.

K&N Replacement Air Filters are designed to increase horsepower and acceleration while providing excellent filtration. The air filters are washable and reusable and are custom designed to fit into your existing factory air box. Its high flow cotton gauze air filter is built to last for the life of an automotive or motorcycle engine.  K&N air filters consist of four to six sheets of cotton gauze layered between two sheets of aluminum wire mesh.  This media is then pleated and oiled to enhance its filtering capabilities and overall performance. These air filters allow dramatically more air into the engine. They are backed by a limited manufacturer warranty.

K&N's lifetime replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. The air filter is custom-designed to fit into your existing factory air box and the drop-in design means adding performance is simple. The unique design of the air filter features multiple layers of cotton fabric which capture airborne dirt particles. The filter is washable and reusable and can be easily cleaned and oiled. It lasts up to 50,000 miles before cleaning is needed.