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33-2405
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K&N 33-2405 Air Filter

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   4 Customer Reviews
  • Designed to boost horsepower and rate of acceleration
  • Can be cleaned and used again
  • High air flow with exceptional filtration
  • Lasts up to 50,000 miles before cleaning is required depending on driving conditions
  • Works with original equipment manufacturer vehicle electronics
  • Emissions legal in all 50 US states
  • Will NOT void vehicle warranty
  • Million Mile Limited Warranty®
The K&N 33-2405 Air Filter fits some Mercedes-Benz C63 AMG, Mercedes-Benz CL63 AMG, Mercedes-Benz CLK63 AMG, Mercedes-Benz CLS63 AMG, Mercedes-Benz E63 AMG, Mercedes-Benz ML63 AMG, Mercedes-Benz R63 AMG, Mercedes-Benz S63 AMG, and Mercedes-Benz SL63 AMG models. See vehicle applications link for details.
K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles 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.

[More Information on K&N Replacement Air Filters]

Product Specifications

Air Filter ShapePanel
Filter MaterialCotton Gauze
Height1 in (25 mm)
Outside Length12.125 in (308 mm)
Outside Width6.125 in (156 mm)
Package Contents1 Air Filter
Package Quantity1
Warranty1,000,000 Miles/10 Year
Product StylePanel Air Filter
Weight1.8 lb (0.8 kg)
Filter Re-Oiling Amount0.85 oz (25 ml)
Product Box Height1.75 in (44 mm)
Product Box Length13.56 in (345 mm)
Product Box Width7.72 in (196 mm)

K&N 33-2405 Air Filter Product Reviews

Wednesday, July 26, 2017 - Part 33-2405
I have used K&N filters on cars and bikes in the past so it was a no brainier fitting K&N filters to my C63. The filters allow the engine to breathe properly and make a massive difference in power and throttle response, highly recommend

Robert Weston
Bingley, United Kingdom
Friday, July 7, 2017 - Part 33-2405
The performances on my car is completely different. The torque, the power.. everything's just different. This is the best!

Arfhy Santos
Bronx, New York
Wednesday, May 3, 2017 - Part 33-2405
I have been using K&N filters for years. I have used them as a factory replacement and in the case of my Ducati, as a factory recommended piece of a performance upgrade. For all of the AMG owners, I have used the recommended K&N filters in my 09 CLK550, 07 CLK63, and 08 CLK63. They work as expected in that the factory setup is a grossly restricted paper, plus charcoal and the K&N allows the engine to breathe. The performance increase is perceptible enough to validate the K&N, not to mention the ability to reuse indefinitely. The issue of the oil contaminating the MAF sensor is not factual, more likely user error. I also use them in my 08 Honda and 99 Tahoe. Great product

Stuart Downey
Marietta, California