K&N or Weistec Air Filters... charcoal delete?
#1
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K&N or Weistec Air Filters... charcoal delete?
OK.. so the stearlership told me to replace my air filters (and another $800k of various fluid replacements at 40k miles..ug). I figured its a good opportunity to change to a new airfilter set up?
I'm a newbie at this so bare with me... I did search but saw no comparison.
A. Is there any downside to the charcoal delete? This is a DD for me, not a track car.
B. Weistec (dry) or K&N (oiled)? Is oil a problem with the MAF sensors?
Thx.
I'm a newbie at this so bare with me... I did search but saw no comparison.
A. Is there any downside to the charcoal delete? This is a DD for me, not a track car.
B. Weistec (dry) or K&N (oiled)? Is oil a problem with the MAF sensors?
Thx.
#3
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ford svt's, and C63!!!
OK.. so the stearlership told me to replace my air filters (and another $800k of various fluid replacements at 40k miles..ug). I figured its a good opportunity to change to a new airfilter set up?
I'm a newbie at this so bare with me... I did search but saw no comparison.
A. Is there any downside to the charcoal delete? This is a DD for me, not a track car.
B. Weistec (dry) or K&N (oiled)? Is oil a problem with the MAF sensors?
Thx.
I'm a newbie at this so bare with me... I did search but saw no comparison.
A. Is there any downside to the charcoal delete? This is a DD for me, not a track car.
B. Weistec (dry) or K&N (oiled)? Is oil a problem with the MAF sensors?
Thx.
#4
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'09 C63
Stay with dry. The MAF sensors on our C63 is highly sensitive, so the oiled filters may give you a CEL. However, each car responds differently to oiled filters...dry filters would be most safe.
#5
MBWorld Fanatic!
Do not run an oiled filter in this car, the car already makes enough blow-by and the oil fromt eh K&N's will just mess up your MAF's
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ford svt's, and C63!!!
At the end of the day though, the stock filters and entire intake system appear to be a very good design, and also free flowing, if you did swap filters, I think the gains would be in your head at best. I'm pretty sure the dry paper filter elements probably do the best job "filtering" over any other style/design.
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#7
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Thanks... I can always rely on good/fast advice from this forum.
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#11
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'09 C63
The stock OEM filters are disposable and aren't supposed to be reused. The AFE/Weistec filters can be reused. They just need to be shaken out and vacuumed. In the long run you'll save money. Plus, $130 for flimsy stock paper filters??
#12
I've read mixed results on this forum. Some said they got check lights when using aftermarket fabric filters and/or deleting the charcoal ones.
As others have said the MAF is sensitive and the filters offer some flow straightening effect which make the flow more laminar and results in a better reading from the sensor. Generally when measuring any fluid flow you want at least 8-10 duct diameters of straight pipe before the sensor (and some after ideally), in the case of our cars it comes right out of the housing into the MAF. Some meters actually have built in straighteners as shown below (item 2)
As others have said the MAF is sensitive and the filters offer some flow straightening effect which make the flow more laminar and results in a better reading from the sensor. Generally when measuring any fluid flow you want at least 8-10 duct diameters of straight pipe before the sensor (and some after ideally), in the case of our cars it comes right out of the housing into the MAF. Some meters actually have built in straighteners as shown below (item 2)
Last edited by Ingenieur; 12-02-2013 at 05:58 PM.
#13
Super Member
Thread Starter
Given the reuse factor, I'll go with one of these... thx all.
Maybe the Weistec to fill my want for a blower...
#14
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... And the charcoal delete... Would this adversely effect emmisions testing in any way?
#16
MBWorld Fanatic!
no the charcoal filters are simply there to collect and hold the fuel vapors from the combustion chamber and injectors when the car is shutoff. which then get sucked in once the car is started. So if you are that concerned with the environment than you probably wouldnt drive a gas guzzling amg. im sure filling a car up with gas emits more fuel vapor or just filling up the lawn mower etc...
#17
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12 C63 : 03 Jetta
i put weistec dry filters in and have had no problems. I ran k&n on my R32 and on an A4, not recommended at all. you think you'll be careful but these newer mafs are too touchy.
#18
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Hello and thank you for all the information.
I found two AFE for the G-WAGON G63 AMG - 1 being DRY and the other OIL. Called AFE directly (the manufacture) and they told me to use the OIL for better sound in the g63 AMG and they told me that THEY ARE BUILT differently to K&N and they will not CEL
Do you or anyone out there know if the AFE oil will actually increased INDUCTION SOUND? (I really do not care about HP gains), or Should I go for the Weistec M157/M278 High Flow? The Weistec is about 65 dollars more expensive, is it worth it?
All I want is to hear more of that whistle from the turbos...
Thank you
Luiz
I found two AFE for the G-WAGON G63 AMG - 1 being DRY and the other OIL. Called AFE directly (the manufacture) and they told me to use the OIL for better sound in the g63 AMG and they told me that THEY ARE BUILT differently to K&N and they will not CEL
Do you or anyone out there know if the AFE oil will actually increased INDUCTION SOUND? (I really do not care about HP gains), or Should I go for the Weistec M157/M278 High Flow? The Weistec is about 65 dollars more expensive, is it worth it?
All I want is to hear more of that whistle from the turbos...
Thank you
Luiz
Last edited by brazeagle; 08-10-2020 at 05:42 PM.