http://www.knfilters.com/search/prod...x?Prod=33-2181

Any of you know what gains are we looking at?

 

None.

With M-B's there have been lots of talk about K&N's actually hurting performance, and not functioning as proper as the OEM Filters. M-B's OEM Filter's are perfect for the job. Also there have been people that said the oil has screwed up their MAF's, I never had that problem on all my previous cars with a K&N though.

 

a little honda will gain easy 5-7hp. a benz ZERO......love it .

 

Yup.

You'll find that it's not easy (or cheap) to unlock HP on an N/A M-B motor, aside from some CPU stuff, bolt-ons are very few and far between, and/or not helpful at all.

 

must agree. Since i picked up my w207 in october ive been researching and all i can find is ecu and they claim 7-10% and that for over 2000$ not sure its worth it.

 

Yeah, definitely not IMO. Not to mention the possible reliability and Warranty complications.

 

Its very simple there will be no noticable gains in performance and it will create the possibility of damage plus the additional noise. They are a bad investment fraught with risks.

 

This debate has been ongoing for 20+ years.. K&N's are not risky... They have been run on millions of cars and allow considerable more air flow than a cheaply crafted paper filter. The worst case scenario is that "oil" gets on the MAF.. which I've seen a ton of dirty MAFS on cars that ran stock filters .. easy fix - alcohol on a Qtip.. better air flow and reusable - don't have to buy new filters every 3k - 9K miles.. personally I like AFE's but same animal..

Nitrous - risky - after market air filter - not risky..

 

Lets say for arguments sake it adds 20hp. (taking at face value statements that it adds zero). Am I really going to notice it on a 382HP car?

 

You sure?

It may flow a tiny bit more, but it also lets more dirt through. Cars with K&N filters almost always show higher silica in their used oil analysis. You want to accept that for zero performance gain? why?

 

That was what happened to a friend of mine's BMW 325i. Apparently the oil in K&N's filters isn't very good for the MAF:s.

 

you will definitely notice the 20hp gains.

 

That is because these motors are already optimized for performance. We already have high flow filters; a Honda probably comes with a cheaper filter.

 

Absoluly incorrect and you will not see a 20HP gain nor will you see any performance increse. The only increase will be in the inlet noise level.

 

So what does that equate to in 0-60 performance? .05 second? I just dont see it. I get it if I am drag racing and split times could easily be that difference. But in that case I would have bought a 911.

 

With a 20HP gain which you will not get with such snake oil as a K and N you may see an .01 sec difference in 0 to 60 times. You will also not see any noticable or significant gains even if you put it on a dyno. Ain't worth the dollars or the potentential grief.

 

 

20 HP is a pipe dream with a K&N.

If gains are anything, you're looking at less than 1HP for an N/A car. With M-B already using hi-flow Air Filters, I wouldn't be surprised if even a loss is possible.

 

k so to END this thread.. NO K&N for our cars......

 

Wise decision!!