no wonder...


look at that green filter.. it looks older than I am..


HKS filter elements *must* be replaced at regular intervals. Also if you attempt to wash it, it will start to fall apart.

Note: New HKS kits have a sticky element, and are not the ones used in that old filter test. Still, HKS elements due filter less than paper intakes, so you have to decide if the extra air flow is worth it or not.

 

But they also have less flow than paper elements. All the minuses, none of the plusses.

Less flow.
Less filtration.
Can't clean it.
Falls apart when it gets old.
No positive seal on the base.

My K&N has lasted me 5 years so far in New England's harsh, sandy winter. I just clean it every so often.

 

i've also heard that HKS filters were not very good, but i don't know about the new yellow style, who knows? maybe they improved their filter, i do see a lot of turbocharged cars with these intakes though

 

do you have data to support the lack of flow claim...? On my car, my boost level is raised by .5 psi between the typical cone filter and the HKS. This would lead me to believe that the HKS is a higher flowing unit.

have a look at the internal design of the HKS. It includes a velocity stack which is great for flow. This is no eBay filter.

HKS also allows you to change between their normal 2 stage sticky filter to a single layer race filter. A nice feature.

 

Yes, here is the data:
http://www.mkiv.com/techarticles/fil...t/2/index.html

 

I think anyone can defend the HKS filtering elements just as long as they're properly maintained. Yes, just like an oil filter, replacement at set intervals is necessary. The screwed on honeycomb pushes the SMF element tightly onto the assembly so there is a well put together seal. My two cents.

 

This is how good the HKS filter uh...filters:

 

I think that this helps the cause though. The elements in the past were simply a non-oiled foam element. Now they come oiled just like any other paper filter to trap debris.

 

Don't you think that pulling in hot air off the line from the engine compartment might decrease power and/or cause detonation.

For a race car with proper cold air ducting to the area of the filter this could yield increased performance, but on a street car this seems like a bad idea.

 

The position of the intake is actually pretty good. Front left corner and away from the turbo. Plus, the Evo also has the advantages of the hood ducts to force heat out of the bay.

 

Like it was said before, the HKS filters are meant to be REPLACED every so often. I'd say every 5,000 miles.

If money is no object just use the yellow filter for however long it will last and then replace it with an HKS paper and metal filter (expensive!!).

Correction: The HKS Metal Flow Filter is completely metal just like the Blitz. And it cost $168 retail just for the filter.

 

You still are, they don't get it.

 

Shape,

the link you have posted shows the poor filtration..

but I am referring your lack of air flow claim on the HKS.. where is the data?

 

Look at the horsepower gains reported. The HKS had the smallest amount of power gain.

Poor filtration, and the least power gain. HKS is the one to use, obviously!

I love HKS cams. I have a set in my car. Their air filters are crap, though.

 

Please disregard the intake test posted above. It was performed by an independent Apexi Dealer in Europe. If you only carried one Japanese brand name in your store, wouldn't you want it to seem as if it were the best out there?

The fact still remains that the HKS Super Mega Flow system is the most popular and widely used intake system in Japan. If you look in any reputable Japanenese auto mag, you will see for yourself.

The filter element itself is made from a wet polyurethane design that improves dust and dirt collection remarkably better than cotton or paper type fliters. There is also no reduction in intake air efficiency because of frame lamination or structural multi layers.

The basket of the Super Mega Flow System has an integrated super funnel lip design which makes the air chanel into the stream without turbulence or loss and is very efficient in small engine bays.

How much did you pay for your K&N cleaning kit? Probably about 30 bucks which would have gotten you two 200mm replacement filters from HKS. Not knocking K&N because I've used their products for years, but having to pull the filter off to clean and wait (for how long?) to dry is much more cumbersome than just popping in a new element every 6-10k miles.

Just my 2 cents....