AEM dryflow filter for PRL HVI intake

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Thanks @champ_white_FL5 and @jtlctr for additional investigation, details and pictures! I added the aFe POWER Takeda TF-9007D option to the original post.

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I do want to add that folks should do their own research after seeing a source like this thread. I was familiar with aFe Power from the Ford world, but not sure I trust the name, quality and testing as much as AEM.

just one example:

 

[champ_white_FL5]

I do want to add that folks should do their own research after seeing a source like this thread. I was familiar with aFe Power from the Ford world, but not sure I trust the name, quality and testing as much as AEM.

just one example:

Thanks for posting. That doesn't look good. How has the AEM Dryflow been treating you on the HVI? Any sealing or dust bypass issues?

 

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Thanks for posting. That doesn't look good. How has the AEM Dryflow been treating you on the HVI? Any sealing or dust bypass issues?

I actually have yet to install HVI, the AEM filter is clamped to the velocity stack with an AEM sock on it, standing on my dresser haha. I suppose I’m seeing how much if any dust gets past the sock lol. Been running AEM filters (I have two that I alternate) in my tuned Focus ST since 2015.

 

[champ_white_FL5]

I've had the AEM filter on for about two months now and its been fine. From holding both the PRL and AEM filters up to the light, the AEM definitely seems like it would filter better since it's a lot less transparent.

Now that more time has passed, has the AEM filter been treating you well? Any sealing or dust bypass issues?

 

[apl360]

Been wondering myself too

 

[blueroadster]

Another filter to consider if it will fit your aftermarket intake housing: GruppeM GMR-0945 is a spare replacement filter for the GruppeM FL5 intake and offers more filtration surface area.

 

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Another filter to consider if it will fit your aftermarket intake housing: GruppeM GMR-0945 is a spare replacement filter for the GruppeM FL5 intake and offers more filtration surface area.

this absolutely will not fit the PRL HVI

 

[powerofdreams]

Now that more time has passed, has the AEM filter been treating you well? Any sealing or dust bypass issues?

I haven't checked it yet, but I'll update you when I do.

 

[Nikw91]

I posted this in another thread also. But the PRL is snug on the intake pipe without the clamp. The AEM filter falls right onto the pipe and tightened up perfectly, no gaps or wrinkles.

The AEM filter is noticeably thicker material. BUT it did noticeably quiet down intake noises by 25-30% I would say and slightly less hp. With the cooler weather the car still feels slightly slower.

I will he switching back because I love the sounds and power to much of the cheap PRL filter lol

 

[champ_white_FL5]

I posted this in another thread also. But the PRL is snug on the intake pipe without the clamp. The AEM filter falls right onto the pipe and tightened up perfectly, no gaps or wrinkles.

The AEM filter is noticeably thicker material. BUT it did noticeably quiet down intake noises by 25-30% I would say and slightly less hp. With the cooler weather the car still feels slightly slower.

I will he switching back because I love the sounds and power to much of the cheap PRL filter lol

Wow! I'm surprised you noticed a power difference. When I compared the two, max MAF voltage would be slightly higher with the PRL filter indicating higher flow. Not sure if this translates to more power but I'm also on the stock tune.

I don't think the PRL filter is "cheap" per say, but rather just a different design of filter. PRL filters are made by the company GREEN Filter if you want to look more into them. They're like the K&N of Europe, apparently everyone uses them over there. Considering thousands of Honda owners use PRL filters for long term without issues indicates that they work well enough.

Did you notice any dust or debris inside of your MAF housing that made it through the PRL filter?

 

[Nikw91]

Wow! I'm surprised you noticed a power difference. When I compared the two, max MAF voltage would be slightly higher with the PRL filter indicating higher flow. Not sure if this translates to more power but I'm also on the stock tune.

I don't think the PRL filter is "cheap" per say, but rather just a different design of filter. PRL filters are made by the company GREEN Filter if you want to look more into them. They're like the K&N of Europe, apparently everyone uses them over there. Considering thousands of Honda owners use PRL filters for long term without issues indicates that they work well enough.

Did you notice any dust or debris inside of your MAF housing that made it through the PRL filter?

I will double check when I switch back.

But yeah, spool noises are down roughly 25-30% and my third gear pull onto the highway is now a lot more controlled. Where before the filter was changed, third gear felt like it was on ice skates

 

[apl360]

That’s the thing with filters. The better the filtration the worse the flow. The worse the filtration the better the flow.

27won solved this by making sure their dry media filter has a ton more surface area. Running a dry filter that is dang near the same size as the prl filter is definitely going to choke things some.

maybe try and find something that’s the same length but way wider? For the sake of increasing surface area more? Should help with flow

and plz share your results if U do crack this? I too want to get rid of the prl “filter”

thnx!

 

[Two Step Performance]

I don't think the PRL filter is "cheap" per say, but rather just a different design of filter. PRL filters are made by the company GREEN Filter if you want to look more into them. They're like the K&N of Europe, apparently everyone uses them over there. Considering thousands of Honda owners use PRL filters for long term without issues indicates that they work well enough.

Well stated. We have sold thousands of PRL intakes with Green Filter oiled filters (as well as using them on all of our shop cars over the years - 7 Civics and 2 Accords) and have never had any issues ourselves or complaints reported.

 

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Here’s another dry filter to try, the dimensions appear to be a fit:

https://ramairusa.com/proram-medium...air-filter/?setCurrencyId=2&sku=PR-CC-194-150

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