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Old 08-09-2004, 07:51 PM   #1
zuczek
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Default K&N Oil Filter Hp-1008

Hi all,

I was wondering if anyone is using the K&N oil filter part HP-1008 in their 02 WRX? Or do most people stick with Purolator or OEM?

Would there be any advantage in using this fairly expensive filter?
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Old 08-09-2004, 11:58 PM   #2
MDChevyguy
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I stand by OEM as my choice for an oil filter. I know that w/ Frams there have been problems with the filters not sealing up right and leaking w/ Subaru applications. I have not heard anything bad about Purolator. The HP-1008 filter provides longer life and will be able to go for the long haul. If you go w/ the basic Purolator and you're using synthetic the filter may not be able to perform up to par for the entire time until you change the oil again. If you get the Pureone Purolator, then the filter will last as long as the oil.

But bottom line is that the HP-1008 is only useful if your using synthetic oil in conjunction with it and are exceeding 3000 mile intervals between oil changes. If you change your oil every 3000 miles, yet drive in heavy traffic or track the car every once in a while, the Pureone is good enough for what your looking for. If you drive around in the countryside alot and the car rarely sees any stop and go city driving, then the basic Purolator will be fine for what you're looking for.
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Old 01-27-2005, 01:19 AM   #3
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Old 01-27-2005, 11:14 AM   #4
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External size has exactly zero to do with the amount of filtration media or its effectiveness. It has been shown time and time again that some smaller filters contain more media than larger ones.

The K&N is an excellent filter, with very high flow and very good filtration. Some believe higher flow with lesser filtration is better than lesser flow with high filtration. With that in mind, the Subaru spec'd filter is one of the two highest flowing filters available, topped only by Amsoil, and it filters excellently. It also costs about half. You will not likely see any difference in performance between them. The K&N is a heavier filter and good for off-road (resist punctures). Also the K&N *may* last longer between OCI's, but unless you are going over 10,000 or 1 year, any good filter will last and function just as well (bar racing, off-road driving, or a ****ty air filter- K&N air filters = not so good).

I've used both K&N and Amsoil and wouldn't hesitate to use them again, but I will be replacing my Amsoil with OEM from now on. The cost is just not justified.
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Old 01-27-2005, 04:34 PM   #5
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Well, a quick side note and or correction but the correct part number that should be used for the K&N oil filter is. HP-1004 "Not 1008"


L8rZ
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Old 01-27-2005, 10:09 PM   #6
cky211
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Why does their site say HP-1008?


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Old 01-27-2005, 10:13 PM   #7
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Quote:
Originally Posted by othon
Well, a quick side note and or correction but the correct part number that should be used for the K&N oil filter is. HP-1004 "Not 1008"


L8rZ

I have a HP-1008 on my car but I haven't driven it yet. Where are you getting this info?
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Old 01-27-2005, 10:32 PM   #8
othon
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Quote:
Originally Posted by cky211
I have a HP-1008 on my car but I haven't driven it yet. Where are you getting this info?
Well when i bought my very first K&N oil filter i got it from www.boxer4racing.com and after i got mine from the them it was an HP-1004 and now and if can picture it right in my head, of the filter next to the old OEM when i changed it out, they were the same size unlike the HP-1008 which looks smaller.

Either way when i install the HP-1004 it looks to be the same size as the oem.
The one shown up above in this post even looks to small compaired to the one i buy.
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Old 01-27-2005, 10:41 PM   #9
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HP-1004 Product Specifications
Product Style: Oil Filters
Height: 3.48 in (88 mm)
Outside Diameter: 3.12 in (79 mm)
PSI Relief Valve: 11-14
Anti Drain Back Valve: Yes
Weight: 0.6 lb (0.3 kg)
Product Box Length: 3.15 in (80 mm)
Product Box Width: 3.15 in (80 mm)
Product Box Height: 3.48 in (88 mm)
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Old 01-27-2005, 10:48 PM   #10
othon
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Quote:
Originally Posted by cky211


HP-1004 Product Specifications
Product Style: Oil Filters
Height: 3.48 in (88 mm)
Outside Diameter: 3.12 in (79 mm)
PSI Relief Valve: 11-14
Anti Drain Back Valve: Yes
Weight: 0.6 lb (0.3 kg)
Product Box Length: 3.15 in (80 mm)
Product Box Width: 3.15 in (80 mm)
Product Box Height: 3.48 in (88 mm)

Thats the one and i went outside to double check and yes i have HP-1004 and it is the same size as stock but i have a 04 WRX Wagon, but that shouldnt matter cause the engine block hasent changes in a while...

Either way works well for me.
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Old 01-29-2005, 10:32 PM   #11
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K&N Applications for HP-1008

This has me paranoid I was under my car and I found a little oil on the exhaust manifold heat shield near the K&N oil filter


Thinking about taking it off

I checked the application list for the HP-1004 and it only lists a Subaru H6 motor.



-Scott A.
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Old 01-29-2005, 10:41 PM   #12
04.SPT.WRX
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I'm using the HP-1008 as specified on K&N's website. I like the hex widget welded onto the top.
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Old 01-29-2005, 10:54 PM   #13
cky211
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Quote:
Originally Posted by 04.SPT.WRX
I'm using the HP-1008 as specified on K&N's website. I like the hex widget welded onto the top.
Yes one inch

Easy on easy off

Very nice!
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Old 01-30-2005, 01:27 AM   #14
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For reference:

The K&N HP-1004 is equivalent to the OEM AA060 filter (the original filter to come stock on the USDM WRX).

The K&N HP-1008 is equivalent to the OEM AA080 filter (the new filter that Subaru switched to relativley recently).

For more info, check out this sticky post: http://forums.nasioc.com/forums/showthread.php?t=434057 (which happens to be at the top of the "Service and Maintenance" forum.


For what it's worth, I still use the HP-1004 filter on a '02 WRX - my local dealership said to just stick with the same filter I was using, since I had a '02 Impreza.
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