I put in the pair of K&N filters in my 3.5L. It's an easy 10 minutes. Feels pretty good. But I was amazed at how much junk comes out of the air box even after only a few thousand miles. Bugs, butts, and lots of sand. Those twin snorkels really vacuum up the debris. Keep 'em clean!


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Cigarette butts??? Never found that in my air box. Wow your car really sucks

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eww..LoL
i dont think its so powerful it can suck cigarette butts off the ground..
maybe the driver in front oof you flicked it out the window.
i dont think its so powerful it can suck cigarette butts off the ground..
maybe the driver in front oof you flicked it out the window.
Here's what the stock one looks like next to the K&N ...


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i dont think its so powerful it can suck cigarette butts off the ground..
maybe the driver in front oof you flicked it out the window.
Yeah, that's my guess. They bounce up and get "hoovered".Originally Posted by rlee02135
eww..LoLi dont think its so powerful it can suck cigarette butts off the ground..
maybe the driver in front oof you flicked it out the window.
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The new filters feel pretty good. Definitely doesn't hurt but it's no set of Kleeman headers either (which I am now Jonesing for). I went tooling around tonight and they do work, they do feel better. But I also don't hear a lot more engine noise like I do on other cars i ran these filters. The MB air box works as a nice silencer. It's all good.Originally Posted by fstblckpresiden
u feel any difference?
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the K&N is so pretty Originally Posted by Drop-a-Daimler
Here's what the stock one looks like next to the K&N ...

the C350 uses an M112 filter? is your K&N part number is 33-2256?
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the C350 uses an M112 filter? is your K&N part number is 33-2256?
I had been checking the K&N website. It seems like they just listed the PN for the C-Class 3.5L. PN is 33-2859. Maybe it's just an update to the 2256. I also posted the K&N link here.Originally Posted by rlee02135
the K&N is so pretty 
the C350 uses an M112 filter? is your K&N part number is 33-2256?
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pull your exhaust resonator and you'll hear a little more roar...