Green Air filter elements?

**Dolebludger** · 02-16-2008

Since I started posting here a few days ago, I have seen references to "Green Air Filter Elements" and some good things said about them. All I know about non-OEM filter elements is K&N -- which I had on my Honda S 2000 until a mechanic told me that I was getting too much dirt in my intake! K&N gives a bit of a performance boost (very small) but not worth dirt in the intake.

Do Green Filters cause this problem? And do they help performance/fuel efficiency?

Thanks,
Richard

**FishtailnZ** · 02-17-2008

Couple pics for comparison. I gained 9hp in back to back runs on the dyno compared to the stock filters - not bad for what you pay.

Gratuitous dyno shot

**F111F** · 02-18-2008

And the green filters actually trap more dirt and other stuff that is sucked up by the air intakes. It is amazing how much dirt is trapped by the green filters.

**Dolebludger** · 02-19-2008

Bill:

I tried to take advantage of your offer and get the Green Filters. But the store site made me log in again, and rejected my user name and/or password! So I tried to recover this information via store site instrictions, and was told my email address was invalid! I know it is not, as I have been receiving info from this board on replies to my posts and subscribed threads.

Bill, please email me at richhruth@aol.com and give me a way to log on the store site.

**Dolebludger** · 02-19-2008

Bill:

Thanks, I ordered two Green filters. Now, some questions. Do I need a "cleaning kit" with them, or will the one I have for my K&N do the trick? Also, where can I get a Green Filter for an '01 Honda S 2000 (another one of my red roadsters.) I had been running a K&N in it (with some other intake mods that the S 2000 needs but the SLK does not), and my tech said to put the stock element back on as I was getting too much dirt in the intake. As you may know, K&Ns don't filter as well as most stock elements, but as the Green Filters do better, they might help the S 2000 as well.

Pewterslk320 · 04-21-2008

A word of caution !!!

I just removed these filters from my SLK320 after I found them with the outer rubber ring melted.

The element got separated off the outer rubber ring leaving the engine with no filter protection.

I will never buy these filters again. I am switching to K&N which I have used on my other cars with no problem.

**etyu** · 04-21-2008

Quote:

Originally Posted by Pewterslk320

A word of caution !!!

I just removed these filters from my SLK320 after I found them with the outer rubber ring melted.

The element got separated off the outer rubber ring leaving the engine with no filter protection.

I will never buy these filters again. I am switching to K&N which I have used on my other cars with no problem.

There was a previous batch that was defective. You may be able to get the new batch/replacement free from GreenAirFilters.

**DansSlk** · 04-21-2008

Uh there was a warning about this, it was a bad batch or something like that during a production switch.

Obviously your car your call but i think your MAF will suffer with a K&N

Edit - Eddy beat me to it, i must be getting slow in my old age.

**dltslk** · 04-21-2008

Quote:

Originally Posted by etyu

There was a previous batch that was defective. You may be able to get the new batch/replacement free from GreenAirFilters.

Was there a lot#/ID# associated with this batch so people can check?

**etyu** · 04-21-2008

Quote:

Originally Posted by dltslk

Was there a lot#/ID# associated with this batch so people can check?

Perhaps Bill T remembers. I recall the older style was thicker/deeper when viewed from the side. The new batch is thinner.

**etyu** · 04-21-2008

Pix of the older style green air filter (side view):

**dltslk** · 04-21-2008

Thanks, Ill check next time I have them out.

**kungfudevil** · 04-22-2008

Is the "melting green filter" still an issue? Cuz I wanna get a pair........

**alroumi** · 04-22-2008

The issue got resolved Kungfudevil, the new batch is selling for a while now so you are coverd.

**kungfudevil** · 04-22-2008

Anybody know when they are gonna be in stock in the SLKWorld store? Or should I just buy em from Euroteck Motorsports?

**alroumi** · 04-22-2008

Quote:

Originally Posted by kungfudevil

Anybody know when they are gonna be in stock in the SLKWorld store? Or should I just buy em from Euroteck Motorsports?

Contact Bill T before you purchase these of euroteck, at least the money the forum gets is used to support and finance the site.

**Dolebludger** · 04-22-2008

For what it may be worth, I had a K&N "cone" shaped filter on my '01 S 2000 for about 20,000 miles. At my 30, 000 miles service, my tech showed me how much dirt it had let into my intake, and the work it took for him to clean it out. Naturally, I put the stock cone filter back on, and would like to get a green filter for this car as well. Before that, I had been a "fan of K&N, but no more.

I recently installed "greens" on our SLK 280, and saw nothing about them that would worry me about gasket failure. Now the SLK has a much better designed air intake system than the stock S 2000 does. Indeed, I would cite the stock S 2000 air intake as a prime example of how NOT TO design an air intake. In contrase, the SLK has a very well designed air intake system, and the main advantage you will see from installing "greens" is fuel efficiency.

**kungfudevil** · 04-22-2008

Hmm kind of making me think twice about getting an aftermarket air filter. There seems to be three chief complaints about them:
1. Making sure they are dry after oiling/cleaning them.
2. "Melting" parts
3. Improper fit allowing debris and dirt to get sucked into the engine.

Although fuel efficiency is a big draw, is there any other reason to get these? 9 hp is too negligible a power difference and I really don't see how much fuel savings can be gained through this. It doesnt seem like the OEM filter has any of these drawbacks aside from the fact that they dont allow your engine to breathe as deeply. The gains people are feeling might all be psychological............

My 2 cents......thanks.

**Dolebludger** · 04-22-2008

Well, for what it is worth, my problem with the K&N had nothing to do with an oiling, improper fit, or melting problem. It was merely that the filter didn't provide, well, enough filtration for operation in my very dusty state of Oklahoma. I have been assured that the "greens" filter much better.

But you are correct, in that if a slight increase in power and a slight increase in fuel efficiency aren't that important, then there is little reason to upgrade the filter elements.

I do have "greens" on our SLK 280, and have experienced a little bit better fuel efficiency, plus what seems to be a bit better acceleration (though I have not timed it). I installed them myself, and the fitment was such that I don't see how the elements could let any dirty air bypass them. I do appreciate the increased fuel efficiency, with the required 91 octane selling for close to $3.60 per gallon in my area. Whereas I said in my last post that the S 2000 air intake system was a good example of how NOT TO design such a system, the air intake system on both my SLK and C 320 are just as I would have designed them. Therefore, we are not going to improve performance or fuel efficiency to a dramatic degree by any changes to the the air intake systems -- including installation of green filters. The improvement in these areas is for those who appreciate small gains at a small price.

toySLK · 04-22-2008

After a couple of days driving after installing the Green filters, I actually felt less tight on acceleration, and felt it's more loose and less power. I am not sure if it's psychological though. I am planning to put back the oem filters and see if there is any difference.

02-16-2008	#1 (permalink)
Dolebludger Elite SLK World Member Join Date: Feb 2008 Location: Yukon, OK Vehicle: '07 SLK 280; '04 C 320, '01 Honda S 2000, '98 Ford Ranger truck. Posts: 576 Country: Thanks: 41 Thanked 82 Times in 55 Posts	Green Air filter elements? Since I started posting here a few days ago, I have seen references to "Green Air Filter Elements" and some good things said about them. All I know about non-OEM filter elements is K&N -- which I had on my Honda S 2000 until a mechanic told me that I was getting too much dirt in my intake! K&N gives a bit of a performance boost (very small) but not worth dirt in the intake. Do Green Filters cause this problem? And do they help performance/fuel efficiency? Thanks, Richard

02-17-2008	#2 (permalink)
FishtailnZ Don't feed the trolls... Join Date: Jul 2006 Location: Nfld., Canada Vehicle: 2009 C63 pipelined Other Toys: Wife, kids, dogs... Posts: 1,513 Country: Thanks: 300 Thanked 226 Times in 101 Posts	Couple pics for comparison. I gained 9hp in back to back runs on the dyno compared to the stock filters - not bad for what you pay. Gratuitous dyno shot __________________ - Bill Waiting on a 2009 C63 Fire Opal/Alpaca Premium+Media R.I.P. 2006 SLK55 Caspian Blue/Beige Stock 1/4 mile results: ET 12.72, trap 110.80, 60' 1.80 Some guys they just give up living and start dying little by little, piece by piece. Some guys come home from work and wash up and go racin' in the street... - B. Springsteen

04-21-2008	#8 (permalink)
DansSlk Dude Join Date: Jun 2006 Location: Wales Vehicle: 05 B55S (Brabus 6.1 S) Posts: 6,801 Country: Thanks: 99 Thanked 236 Times in 180 Posts	Uh there was a warning about this, it was a bad batch or something like that during a production switch. Obviously your car your call but i think your MAF will suffer with a K&N Edit - Eddy beat me to it, i must be getting slow in my old age. __________________ One thing you will learn with German cars - If it's simple it ain't happening.

04-21-2008	#11 (permalink)
etyu Founding Member #2 / Ambassador Of Good Will Join Date: Jun 2006 Location: Orange County, CA Vehicle: 2008 SLK 55 Posts: 5,309 Country: Thanks: 385 Thanked 283 Times in 174 Posts	Pix of the older style green air filter (side view): __________________ *Eddy* To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts. Pewter/Beige, PIII package, Airscarf, Hands-Free Communication System, Lighting package Designo Black Leather Cover on e-brake handle, ( To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts. Bill T), SmartTop v1.0, Kleyman 3BFM (NoRegret Custom), Green Air Filters, *Mod. R170 ant.*, EuroClear sidemarkers w/PIAA PlasmaIon lamps, chromed front & rear turn indicator lamps, PIAA SuperPlasmaGTX front parking lamps, bilateral rear fog lamps enabled.

04-22-2008	#14 (permalink)
alroumi Moderator Join Date: Jun 2006 Location: Kuwait City, Kuwait Vehicle: 2006 Kleemann Designo Mocha Black SLK55 AMG Other Toys: 2007 Ebony Jaguar XKR Coupe' and 06 Black Cayenne S Posts: 6,296 Country: Thanks: 306 Thanked 235 Times in 149 Posts	The issue got resolved Kungfudevil, the new batch is selling for a while now so you are coverd. __________________ 06 Kleemann Designo Mocha Black SLK55 AMG 06 Porsche Cayenne S 07 Jaguar XKR Coupe' I use the Torque and keep the HP for my Steak Sauce!

02-18-2008	#3 (permalink)
F111F Elite SLK World Member Join Date: Oct 2006 Location: Plano, TX Vehicle: SLK55 Black Mocha Designo Posts: 291 Country: Thanks: 39 Thanked 23 Times in 11 Posts	And the green filters actually trap more dirt and other stuff that is sucked up by the air intakes. It is amazing how much dirt is trapped by the green filters.

02-19-2008	#4 (permalink)
Dolebludger Elite SLK World Member Join Date: Feb 2008 Location: Yukon, OK Vehicle: '07 SLK 280; '04 C 320, '01 Honda S 2000, '98 Ford Ranger truck. Posts: 576 Country: Thanks: 41 Thanked 82 Times in 55 Posts	Bill: I tried to take advantage of your offer and get the Green Filters. But the store site made me log in again, and rejected my user name and/or password! So I tried to recover this information via store site instrictions, and was told my email address was invalid! I know it is not, as I have been receiving info from this board on replies to my posts and subscribed threads. Bill, please email me at richhruth@aol.com and give me a way to log on the store site.

02-19-2008	#5 (permalink)
Dolebludger Elite SLK World Member Join Date: Feb 2008 Location: Yukon, OK Vehicle: '07 SLK 280; '04 C 320, '01 Honda S 2000, '98 Ford Ranger truck. Posts: 576 Country: Thanks: 41 Thanked 82 Times in 55 Posts	Bill: Thanks, I ordered two Green filters. Now, some questions. Do I need a "cleaning kit" with them, or will the one I have for my K&N do the trick? Also, where can I get a Green Filter for an '01 Honda S 2000 (another one of my red roadsters.) I had been running a K&N in it (with some other intake mods that the S 2000 needs but the SLK does not), and my tech said to put the stock element back on as I was getting too much dirt in the intake. As you may know, K&Ns don't filter as well as most stock elements, but as the Green Filters do better, they might help the S 2000 as well.

04-21-2008	#6 (permalink)
Pewterslk320 SLK World Junior Member Join Date: Apr 2008 Location: Miami, Florida Vehicle: SLK320 Pewter Posts: 1 Country: Thanks: 0 Thanked 0 Times in 0 Posts	A word of caution !!! I just removed these filters from my SLK320 after I found them with the outer rubber ring melted. The element got separated off the outer rubber ring leaving the engine with no filter protection. I will never buy these filters again. I am switching to K&N which I have used on my other cars with no problem.

04-21-2008	#12 (permalink)
dltslk Elite SLK World Member Join Date: Aug 2007 Location: GA Vehicle: 2007 Mars Red/Black SLK55 AMG Other Toys: 1968 Pontiac GTO Posts: 677 Country: Thanks: 89 Thanked 67 Times in 52 Posts	Thanks, Ill check next time I have them out.

04-22-2008	#13 (permalink)
kungfudevil Senior SLK World Member Join Date: Jan 2008 Location: Long Beach, CA Vehicle: '06 SLK55 Posts: 108 Country: Thanks: 4 Thanked 11 Times in 3 Posts	Is the "melting green filter" still an issue? Cuz I wanna get a pair........

04-22-2008	#15 (permalink)
kungfudevil Senior SLK World Member Join Date: Jan 2008 Location: Long Beach, CA Vehicle: '06 SLK55 Posts: 108 Country: Thanks: 4 Thanked 11 Times in 3 Posts	Anybody know when they are gonna be in stock in the SLKWorld store? Or should I just buy em from Euroteck Motorsports?

04-22-2008	#17 (permalink)
Dolebludger Elite SLK World Member Join Date: Feb 2008 Location: Yukon, OK Vehicle: '07 SLK 280; '04 C 320, '01 Honda S 2000, '98 Ford Ranger truck. Posts: 576 Country: Thanks: 41 Thanked 82 Times in 55 Posts	For what it may be worth, I had a K&N "cone" shaped filter on my '01 S 2000 for about 20,000 miles. At my 30, 000 miles service, my tech showed me how much dirt it had let into my intake, and the work it took for him to clean it out. Naturally, I put the stock cone filter back on, and would like to get a green filter for this car as well. Before that, I had been a "fan of K&N, but no more. I recently installed "greens" on our SLK 280, and saw nothing about them that would worry me about gasket failure. Now the SLK has a much better designed air intake system than the stock S 2000 does. Indeed, I would cite the stock S 2000 air intake as a prime example of how NOT TO design an air intake. In contrase, the SLK has a very well designed air intake system, and the main advantage you will see from installing "greens" is fuel efficiency.

04-22-2008	#18 (permalink)
kungfudevil Senior SLK World Member Join Date: Jan 2008 Location: Long Beach, CA Vehicle: '06 SLK55 Posts: 108 Country: Thanks: 4 Thanked 11 Times in 3 Posts	Hmm kind of making me think twice about getting an aftermarket air filter. There seems to be three chief complaints about them: 1. Making sure they are dry after oiling/cleaning them. 2. "Melting" parts 3. Improper fit allowing debris and dirt to get sucked into the engine. Although fuel efficiency is a big draw, is there any other reason to get these? 9 hp is too negligible a power difference and I really don't see how much fuel savings can be gained through this. It doesnt seem like the OEM filter has any of these drawbacks aside from the fact that they dont allow your engine to breathe as deeply. The gains people are feeling might all be psychological............ My 2 cents......thanks.

04-22-2008	#19 (permalink)
Dolebludger Elite SLK World Member Join Date: Feb 2008 Location: Yukon, OK Vehicle: '07 SLK 280; '04 C 320, '01 Honda S 2000, '98 Ford Ranger truck. Posts: 576 Country: Thanks: 41 Thanked 82 Times in 55 Posts	Well, for what it is worth, my problem with the K&N had nothing to do with an oiling, improper fit, or melting problem. It was merely that the filter didn't provide, well, enough filtration for operation in my very dusty state of Oklahoma. I have been assured that the "greens" filter much better. But you are correct, in that if a slight increase in power and a slight increase in fuel efficiency aren't that important, then there is little reason to upgrade the filter elements. I do have "greens" on our SLK 280, and have experienced a little bit better fuel efficiency, plus what seems to be a bit better acceleration (though I have not timed it). I installed them myself, and the fitment was such that I don't see how the elements could let any dirty air bypass them. I do appreciate the increased fuel efficiency, with the required 91 octane selling for close to $3.60 per gallon in my area. Whereas I said in my last post that the S 2000 air intake system was a good example of how NOT TO design such a system, the air intake system on both my SLK and C 320 are just as I would have designed them. Therefore, we are not going to improve performance or fuel efficiency to a dramatic degree by any changes to the the air intake systems -- including installation of green filters. The improvement in these areas is for those who appreciate small gains at a small price.

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04-22-2008	#20 (permalink)
toySLK SLK World Member Join Date: Dec 2007 Location: NorthEast, US Vehicle: 2007 SLK350 6M with AMG pkg Posts: 36 Country: Thanks: 0 Thanked 0 Times in 0 Posts	After a couple of days driving after installing the Green filters, I actually felt less tight on acceleration, and felt it's more loose and less power. I am not sure if it's psychological though. I am planning to put back the oem filters and see if there is any difference.