What's the verdict on the AEM Dryflow
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I am currently using a DryFlow filter (4" x 9")on my 1999 Dodge Cummins. Up to this point, no fine dust in the intake tube and my Cummins loves the additional air flow. In approximately 2 months, will perform an oil analysis to see what the air filtration capabilities are. IMHO, that is the only way to really know what the filtration capabilities truly are.
Agreed. I too have this filter on my 2005 Mazda 3. I'm planning on having my oil changed this weekend, so a UOA should be back in a couple of weeks!
Off-topic:
Hey sdude, are you going to throw in PP when you chance the oil? I'm about 250 miles away from throwing PP in the Mazda3. That means it should be sometime next week for me.
On-topic:
Once my OEM filter gets to the "need to change" point, I will probably get the AEM CAI with DryFlow filter. I can't wait to check it out.
Hey sdude, are you going to throw in PP when you chance the oil? I'm about 250 miles away from throwing PP in the Mazda3. That means it should be sometime next week for me.
On-topic:
Once my OEM filter gets to the "need to change" point, I will probably get the AEM CAI with DryFlow filter. I can't wait to check it out.
I put a DryFlow filter on my K&N intake. I just got my UOA results back and the silicon looked good considering I had the K&N on for the first 4 months and the AEM for the last 2. The engine also has only 12,000 miles on it.
So I think it's doing it's job. Won't know for sure until I do another UOA in September.
In comparison to a paper filter it's a lot closer than any other type of filter. AEM tests say 99.35%.
Here (middle of the page), I did a little write-up as to why I switched, with some helpful links and charts: http://www.cardomain.com/ride/2090989/1
So I think it's doing it's job. Won't know for sure until I do another UOA in September.
In comparison to a paper filter it's a lot closer than any other type of filter. AEM tests say 99.35%.
Here (middle of the page), I did a little write-up as to why I switched, with some helpful links and charts: http://www.cardomain.com/ride/2090989/1
After four months in a dusty and sandy climate I pulled the intake today and scoped out the interior of the throttle body ('04 2.4L Accord).
No discoloring, no deposits, no built up dirt or sand, uh, nothing to report! No UOA to back this up but it appears to be doing its job well.
No discoloring, no deposits, no built up dirt or sand, uh, nothing to report! No UOA to back this up but it appears to be doing its job well.
i got one, so far so good.
The filter has nice features like the integrated velocity stack and the lip inside the neck so the seating of the filter is always right.
The media also doesn't show pinholes when held up to the light like cotton filters.
The filter has nice features like the integrated velocity stack and the lip inside the neck so the seating of the filter is always right.
The media also doesn't show pinholes when held up to the light like cotton filters.
Update on AEM air filtration capabilities - Recent UOA (approximately 4800 mile interval) on AEM Dryflow (P/N 21-2059DK) indicates filtering is working - silicon levels below normal. This is on a 99 Dodge Cummins 5.9L modified for around 370-380 ponies.
I cannot speak to the filtration numbers, however the AEM DryFlow flow rate is on par with our old KN's.
I just ordered one of the 21-2049 Dryflow filters to replace the OEM filter on my K&N FIPK. I'm really hoping it will have a positive impact upon the amount of silicon that's been showing up in my UOA's. I was going to go with one of the new Amsoil Cone filters, but the AEM's have compiled a pretty impressive body of evidence and they're a little bit cheaper.
BTC,
Let us know how your future UOA's turn out. I'm definitely interested to see how the new filter effects your silicon.
Let us know how your future UOA's turn out. I'm definitely interested to see how the new filter effects your silicon.
Cool, thanks Adam!
Is that good?
A few years ago I put a K&N intake on my 4.7L 2001 Grand Cherokee. I just replaced the K&N RF-1045 element with an AEM 21-2049DK. I'm hoping for a significant improvement in my Si numbers. The AEM filter was a very tight fit. If it had a metal casing I doubt I could have gotten it mounted without shortening the intake tube. When I first took it out of the box I thought I was going to have to return the 9" for a 5".
My Si numbers have been 19ppm & 13ppm for 10,700 & 8615 mile change intervals with the K&N. I kind of got the impression that those numbers were terrible, but 10-11ppm in 2,000 miles with a stock paper filter doesn't sound too great eiher. I'm sure there could be a lot of variables in play that I'm unaware of.
If the paper filter numbers above are representative of normal driving conditions and there is a linear relationship between miles driven and Si numbers, maybe I shouldn't expect to see a significant improvement. I hope the numbers don't get worse. It will be interesting to see. I'm probably going to get my oil changed next week, so I'll be able to get one more K&N reading. It's going to be about an 8,000 mile interval.
If the paper filter numbers above are representative of normal driving conditions and there is a linear relationship between miles driven and Si numbers, maybe I shouldn't expect to see a significant improvement. I hope the numbers don't get worse. It will be interesting to see. I'm probably going to get my oil changed next week, so I'll be able to get one more K&N reading. It's going to be about an 8,000 mile interval.
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