K&N Filter Element 2001 C240 W203
The performance gains were really noticeable, especially due to the recent plug change to Denso Iridium. The combination of KN and plugs is a reccomendation for anyone of limited skill. Highway speeds are easily attained while pressing even less down on the pedal. I was driving at 70mph and floored it, even down to the little button on the pedal.. She was off! I hit 95 mph really fast, faster than normal. I'm really impressed thus far. It also gets 25.1 mpg at 70mph, where as I used to pull low 23.6, an increase of 1.5 mpg! Looks like these mods will be paying for themselves at the pump.
I believe the plug/filter combination is directly affected by the cold air intake by mercedes benz. I chose to keep the factory intake b/c of its great design, and just change the filters.
Merry Christmas!
If the motor gets a chance to cool down, I'm going to install the pulley's next.
Took this picture tonight, it's poor quality, but still you can see 37.3 mpg
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Any info appreciated. Thanks!
And yes, it does look like they're all the same.
I never really noticed a difference honesty; maybe there would have been one that showed up on a dyno, but never got around to checking.
Then got a new airbox, which already had a stock one already included, so just kept that instead.
I did have some MAF issues when I had the Green on, but not with the K&N. Overall, if you're going out of your way to get a K&N to replace a functional OEM filter, probably not worth it, but if you're going to replace an OEM one, it might be worth it to see if your butt dyno records any difference.







