SoCalCLK

Nice, FTZ. Since the CLK55 and SLK55 have the same engine, I always wondered how our engines would benefit from a non-paper filter.

As you know, the OEM paper filter is the same in the CLK350, 500 and 55, as well as most of the other cars in the MBUSA line-up that shares those engines.

It would make sense that the 55 engines would see more than a 2-3 hp increase, which is good.

FishtailnZ

Yea I read the same thing about filters giving just 2 - 3 hp, but never saw any actual dynos. So when I dynoed mine for a stock baseline last fall before storing it, I did the first couple of runs with the paper filters. Then for ****s and giggles and the 5 min work to swap 'em in, I tried the Greens for my last run and was pleasantly surprised with that 9 hp gain - cheapest 9 extra hp you're going to get with these cars for sure *L*.

newguy2008

+1.
Been 1 year without any problems - probably time for cleaning/oiling.
I went with Green based on reading that K&N are poorly manufactured - specifically where rubber on the air filter is cut - more jagged edges than Green, which means poor airflow on K & N's?

da_guitarist

hey fishtailn, do u have any pics of the dyno's?

transferred

Green filters fell apart here. Try BMC

FishtailnZ

A pic on the dyno...*gratuitous car pic* *L*

I origionally posted in the SLK forum about the actual run, link below...

https://mbworld.org/forums/slk55-r171/213826-dyno-results-dynodynamics.html

redteam22003

Been running K&N...so far so good.