Audi RS4 & RS5 Gets Superior Airflow & Performance with K&N Air Filters

       Printer Image
Audi RS5 & Audi RS4 reusable air filters

K&N replacement air filters are washable and reusable using a K&N Recharger kit, so you can potentially save money on maintaining your 2010-2015 Audi RS5 or RS4 4.2L V8

Audi RS5 or Audi RS4 K&N replacement air filter

The 33-3031 and 33-3032 replacement air filters are designed to increase horsepower and torque for 2010-2015 Audi RS5 or RS4 4.2L V8 models (requires both filters)

The Audi RS4 and RS5 are venerable wolves in sheep’s clothing. On the surface, you’re greeted with Audi’s subtle styling and veiled hints at more; including a slightly wider track, slightly larger front grill, slightly flared fenders, and small splashes of red from the RS logo. But get in the driver’s seat and bury the throttle, and you’ll experience the wolf bare its teeth. The 4.2 liter V8 howls all the way to 8300 rpm, generating 450 break horsepower and 316 pound-feet of torque along the way. This beastly power is shunted through a seven-speed dual-clutch gearbox and Quattro all-wheel drive to leave nothing but the most ferocious of grins on your face as the wolf slices its way through unsuspecting corners. This performance doesn’t come at the cost of comfort, as the RS4 and RS5 still maintain the refinement expected of fine German automobiles.

The question then becomes “is there room for more?” The answer is a resounding yes. Simply replace the disposable factory air filters with K&N 33-3031 and 33-3032 performance replacement air filters for 2010-2015 Audi RS5 or RS4 4.2L V8 models. These K&N replacement air filters are easy to install and designed to increase horsepower and torque on the Audi RS4 and RS5 models listed below.

These Audi RS models have two engine air filters, and require one of each 33-3031 and 33-3032. Both filters have a durable urethane sealing lip, precision-molded to provide an air-tight seal in the factory air box. At the core of these performance air filters is K&N’s oiled cotton gauze filter media. Four layers of cotton gauze are offset from one another and impregnated with oil to provide a high-flowing filtration media that also ensures excellent filtration efficiency. Your Audi V8 will thank you for allowing it to breathe easier and perform better.

Audi RS5 or Audi RS4 K&N replacement air filter pass ISO 5011 protocol and ISO coarse test dust

The 33-3031 and 33-3032 2010-2015 Audi RS5 or RS4 4.2L V8 replacement air filters are over 98.3% efficient when tested following ISO 5011 protocol and ISO coarse test dust

Another benefit of a K&N replacement air filter is they’re washable and reusable. About every 50,000 miles or so, depending on driving conditions, simply service the filters with a K&N Recharger® air filter service kit. The cleaning process is easy to follow and K&N provides step-by-step instructions. Since you’ll no longer have to replace disposable air filters over and over again, you can even save money on maintenance costs. K&N replacement air filters are backed by a 10-year/million mile limited warranty and will not void your factory warranty, so rest assured that these air filters are a risk-free performance upgrade.

The Audi RS4 and RS5 are formidable forces of German-engineered precision performance, masking the teeth of their true identity behind a veil of subtlety. Let these wolves roam free to devour their back-road prey with some additional performance under the hood, courtesy of K&N replacement air filters. Order your filters today at or use the vehicle search tool to find K&N upgrades for other vehicles. Then find a dealer in your area using K&N’s Dealer Search.

The 33-3031 and 33-3032 are direct, drop-in, performance upgrades on the Audi models listed here:

2015 Audi RS5 4.2L V8
2015 Audi RS4 4.2L V8
2014 Audi RS5 4.2L V8
2014 Audi RS4 4.2L V8
2013 Audi RS5 4.2L V8
2013 Audi RS4 4.2L V8
2012 Audi RS5 4.2L V8
2012 Audi RS4 4.2L V8
2011 Audi RS5 4.2L V8
2010 Audi RS5 4.2L V8


K&N Performance Air Intakes

Did you like this story? Select 1 to 5 stars to rate it.

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 50 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