K&N Drag Racing Air Filters Increase Performance and Airflow

 
 
K&N Drag Racing Air Filter 28-4245
K&N Drag Racing Air Filter 28-4245
K&N has been making air filters for high performance applications since 1969. The oiled cotton gauze air filter design was first developed for off-road racing, where high rates of airflow and excellent filtration efficiency are essential ingredients in the recipe for victory. Another place where K&N air filters really helps to increase performance and protect valuable engines is in drag racing. Drag racing engines develop enormous amounts of horsepower and require exceptionally large amounts of air to do so. With such tight tolerances in these race motors, that air needs flow freely and be clean.
K&N 28-4235 Tapered Drag Racing Air Filter
K&N 28-4235 Tapered Drag Racing Air Filter


Enter, K&N’s drag racing air filters and complete assemblies. These air filters utilize a dry, 2-ply cotton gauze filter media and a large surface area to help minimize restriction and increase airflow to these heavy-breathing motors while still protecting the motor from dust and debris. They’re designed to fit popular hood scoop designs and come in a variety of sizes to fit a wide range of applications. Whether you want to replace an air filter in your current setup, put a filter in your scoop, or install a complete high-performance assembly, K&N has you covered.

The K&N 28-4235 air filter is 6 3/8 inches tall and tapers from 11 inches in diameter at the base to 9 inches at the top. It’s designed for use in popular Formula Atlantic and Super Vee style cars used in racing today and it can fit into many racing air scoops.
66-3340R Tapered Drag Racing Air Filter assembly from K&N
66-3340R Tapered Drag Racing Air Filter assembly from K&N


If you have a 9 inch outside diameter air filter assembly, you can help your engine to breathe easier by installing the K&N 28-4245 at 3 inches tall, or go big with the 28-4240 air filter at 5 inches tall for even more airflow and performance. You can also replace the lid on your 9 inch assembly with the K&N 66-0900R X-Stream Air Flow Top to pull in more air for even greater performance efficiency.
Short Dominator assembly 66-3330R from K&N
Short Dominator assembly 66-3330R from K&N


For a complete assembly with a 5 1/8 inch neck flange carburetor or throttle body, run the K&N 66-3340R Drag Racing Base Mount Scoop Filter. This assembly incorporates the 28-4235 air filter with an X-Stream Air Flow Top for a complete package of improved performance.

Choose the 66-3300R or 66-3310R if you’re running a 7 5/16 inch Dominator-sized carburetor or throttle body and need a tapered filter assembly to fit in your scoop. These two assemblies both use the 28-4235 air filter and an X-Stream Air Flow Top to help increase airflow, performance and efficiency. The 66-3300R incorporates a lower-profile baseplate than the 66-3310R, which helps ease fitment in applications with cramped quarters around the air filter.
K&N's 66-3320R tall drag racing air filter assembly
K&N's 66-3320R tall drag racing air filter assembly


For 7 5/16 inch Dominator-sized carburetor or throttle body applications where a tapered filter isn’t necessary, K&N offers the 66-3330R and 66-3320R Drag Racing Base Mount Scoop Filters. Both of these assemblies have a 9 inch outside diameter air filter and X-Stream Air Flow Top, and come with different heights to help fit your needs. The 66-3330R comes with a 3 inch tall filter and the 66-3320R comes with a 5 inch tall filter for even more airflow and performance.

All of these drag racing filters are washable and reusable so they don’t have to be replaced over and over again like disposable paper air filters and are backed by K&N’s One-Year Limited Warranty. If you’re looking for a great way to improve performance and help develop more horsepower on your drag car, check out K&N’s expansive line of drag racing filters and full assemblies today at www.KNFilters.com!

For all K&N racing air filters visit the K&N Racing Air Filters, Custom Air Filter Assemblies, Off-Road Air Filters page on KNFilters.com.

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K&N Engineering in Riverside California is the world's leading manufacturer of washable performance air filters and air intake systems. K&N invented the reusable high flow cotton air filter in 1969 and has been perfecting the technology ever since. K&N is a world class filtration company selling air filters, oil filters, and intakes in over 30 countries. K&N sells over 5,000 products designed for cars, trucks, motorcycles, engines, and industrial applications. From their Million Mile Warranty to their Consumer Protection Pledge, K&N stands behind their products and their consumers 100%. The distinctive K&N logo represents performance from one of the original performance companies. For more information, visit knfilters.com.

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