K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with 2006-2015 Mercedes (C63 AMG, E63 AMG, CLS63 AMG, ML63 AMG, CLK63 AMG, CLS63 AMG, R63 AMG, S63 AMG), 33-2405

Its a good filter. I personally didnt feel any performance or fuel gains but its nice that its washable. My vehicle requires two of these and no noticable gains

A bit pricey, but so far it was well worth it.

These are good filters and I installed them on my Mercedes ML63 AMG. It improved the exhaust sound a little and I could hear the engine sucking more air. The only downside is that since these are oil dipped, the MAF sensor may start giving errors after some use. Overall pretty satisfied.

What a gret filter, use in all my cars, a little more money but you have the extra quality, performance and longetivity. The aover al experience from the seller was great.

Lasts forever seemingly

I have always purchased K&N performance filters for my cars. This purchase was for my new AMG, and I can feel the difference after I installed these filters. My AMG is a "Rocket n Beast Mode."

So on other sites they will sell the 2 filters as a package but if you want both filters from amazon you need to add 2 items to your cart or you'll just be stuck with 1.Other than that, the product is as expected since it's a K&N and they tend to have some of the best quality products out on the market.After installing the filters on my c63 AMG i was easily able to notice the increase in throttle response compared to how it was with the factory filters that came with the car.A rushing (air) sound is heard when the pedal is to the floor also so you can tell that the car is able to breathe more. I can't speak for any power gains or anything but i can tell that the car likes these filters better than the restrictive factory ones for sure.

Installed them on my CLS63 AMG Andy had a MAF code, carefully took out the sensors on both banks and cleaned the with a MAF spray cleaner. Cleared the code.