Opinions on PRL HVI filter

[jtlctr]

Dudes who installed K&N or PRL filters on their Model Ts in Oklahoma circa 1935 found out the hard way.

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[knuckles]

Exactly, 100% agree! I think the PRL HVI flows so well because the filter is so thin.

When I cleaned the PRL filter there didn't seem to be much dirt and inlet was dusty.

Now when I clean the AEM filter there is a lot of dirt and the inlet has no dust.

I did notice a very slight sound/power reduction when I switched to the AEM filter because it is so much thicker/filtrates better.

Is the sound/power with AEM filter on the HVI still better than stock intake despite being less than with the HVI with PRL filter?

 

[jmheath357]

I had a PRL HVI V2 on my 2.0 Accord for a while. That thing didn't filter worth a crap, just like other oiled K&N style filters. After 10k miles there was a layer of dirt/dust inside my inlet tube when I went to service the filter. Got rid of the thing and got a dry flow filter. This is the trade off for more flow, doesn't matter what the brand is. If it flows more air for the same given surface area, that means it doesn't filter as well, plain and simple. Whether the difference in filtration makes a difference for you depends on your environment and your personal standards of what is acceptable filtering/performance. Living in a desert like I do, I would not run an oiled filter. This is why my intake is stock on the Type R and will stay that way until I sell my house and get out of this hell hole. Even then, I would only run a dry filter as I much prefer the added filtration over the 2hp I would be giving up to run a higher flowing oiled filter. Just my .02.

 

[Nikw91]

Is the sound/power with AEM filter on the HVI still better than stock intake despite being less than with the HVI with PRL filter?

Yessir, just get them. The PRL intake spool and bov noises are amazing.

 

[Ktrw]

Aftermarket intakes filter quite a bit worse than the oem intake. I'm running the AEM dry flow because various forum members have gotten very bored and are obsessing over small stuff like this but one huge down side is the intake noises are much quieter which sucks.

 

[Montrix]

Is the sound/power with AEM filter on the HVI still better than stock intake despite being less than with the HVI with PRL filter?

Yes, significantly so, I installed the AEM filter with my HVI so I'm not sure what the PRL filter sounds like but the AEM filter + HVI combo is much louder than stock.

 

[minimedic]

I had similar concern. Been running the PRL filter for a while. But ordered AEM to try and seem fitment in person and likely will run that instead just for piece of mind. Would be nice if a company would release a dry filter specifically to fit the PRL HVI.

 

[champ_white_FL5]

Just want to add that the AEM Dryflow is a great option for the HVI. I was concerned about sealing as well, but the intake tract is always very clean after running the Dryflow. Even the rubber flange was spotless so you can tell it's sealing.

The same can't be said for the PRL filter. I would always find a layer of powdery dry dust inside the intake after using the PRL filter.

Like other said the AEM filter does quiet down the HVI a bit, but it's way louder than stock and 100% worth it!

 

[champ_white_FL5]

Update to the above! I may have spoken too soon. Here is the inside of my intake pipe and MAF housing after using the AEM Dryflow for about 2-3k miles.

The amount of dust doesn't concern me much, but moreso the size of the particles that made it through. Keep in mind all intake components were wiped down with an damp microfiber before install.

As you can see when I ran the PRL filter in the past, dust made it through, but the dust was more tiny and powder like compared to what I'm seeing after using the AEM Dryflow.

I've had good UOA results with the PRL filter and am currently waiting on more results after using the AEM Dryflow for the full OCI. I'll update here if the results are anything crazy.

 

[LogicalCC]

Update to the above! I may have spoken too soon. Here is the inside of my intake pipe and MAF housing after using the AEM Dryflow for about 2-3k miles.

The amount of dust doesn't concern me much, but moreso the size of the particles that made it through. Keep in mind all intake components were wiped down with an damp microfiber before install.

As you can see when I ran the PRL filter in the past, dust made it through, but the dust was more tiny and powder like compared to what I'm seeing after using the AEM Dryflow.

I've had good UOA results with the PRL filter and am currently waiting on more results after using the AEM Dryflow for the full OCI. I'll update here if the results are anything crazy.

Nice…hard to tell, but looks like the AEM let through larger particles ?!?

 

[champ_white_FL5]

Nice…hard to tell, but looks like the AEM let through larger particles ?!?

Exactly my thoughts!

 

[jtlctr]

Oh goddamnit all! I was actually planning on checking my intake tract this weekend to see how the filter is performing. Now I’m going to make sure my stock setup is on hand because if I find dust, I’m going back to OEM. BTW, I have had an oil analysis after running the AEM filter for a few thousand miles, and it came back with low silicone readings.

 

[champ_white_FL5]

Oh goddamnit all! I was actually planning on checking my intake tract this weekend to see how the filter is performing. Now I’m going to make sure my stock setup is on hand because if I find dust, I’m going back to OEM. BTW, I have had an oil analysis after running the AEM filter for a few thousand miles, and it came back with low silicone readings.

I even had dust with the stock air box/filter! Honestly, it's probably just my environment. This pic is of the top "clean" side of the OEM air box, post filter.

 

[egxflash]

Aftermarket intakes filter quite a bit worse than the oem intake. I'm running the AEM dry flow because various forum members have gotten very bored and are obsessing over small stuff like this but one huge down side is the intake noises are much quieter which sucks.

if people didn't obsess over the most trivial things, there would be half the content in here.


and places like BITOG wouldnt exist

 

[menikmati]

if people didn't obsess over the most trivial things, there would be half the content in here.


and places like BITOG wouldnt exist

100%

Sometimes I wonder if some of y'all just obsess over optimizing every single thing rather than just enjoying the damn car.

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