K&N® washable, reusable High-Flow Air Filters™ feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10-Year/Million Mile Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!

Available as a left or right-side filter. Sold individually.

• Designed to increase horsepower
• Washable, reusable, and engineered to last for the life of your vehicle
• Designed to provide high airflow and exceptional filtration
• Engineered to fit easily into your factory air box
• 10-Year/Million Mile Limited Warranty
• Only needs cleaning every 50,000 miles under normal highway driving conditions
• Emissions legal in all 50 States
• Will not void vehicle warranty

Specifications

• Air Filter Shape Panel
  
• Air Filter Material Cotton Gauze
  
• Washable Yes
  
• Height 1.5 in (38 mm)
  
• Outside Length 8.375 in (213 mm)
  
• Outside Width 6.375 in (162 mm)
  
• Package Contents 1 Air Filter
  
• Package Quantity 1
  
• Warranty 1,000,000 Miles/10 Year
  
• Product Style Panel Air Filter
  
• Weight 0.9 lb (0.4 kg)
  
• Filter Re-Oiling Amount 0.93 oz (28 ml)
  
• Product Box Height 9.69 in (246 mm)
  
• Product Box Length 7.72 in (196 mm)
  
• Product Box Width 1.75 in (44 mm)
  

1x K&N Replacement Air Filter

• Audi B8 B8.5 RS4 V8 4.2L (2012–2015)
  
• Audi B8 B8.5 RS5 V8 4.2L (2010–2017)

33-3031 (Left Side Filter)
33-3032 (Right Side Filter)

Manufactured by

K&N