nice one....they certainly look better than the blue one!

 

does this mean they dont do a k&n for a classic impreza?

 

I always use blueprint.

 

they do it for 93-00!
http://cgi.ebay.co.uk/K-N-Racing-Oil...item27b7a82f39

 

you can fit that if you like to your classic,buts its NOT for a classic !

The guy hasnt replied to my questions, k&n dont list for the classic,had confimration from another retailer they dont list them,other sites dont list for the classics (k&n) so im taking that as its not for the classic

just because the ad says its for a classic,dont make it so,would be nice to be told 110% it is tho !!!

 

I have the K&N one running on my classic, and it's absolutely fine! good fit too!

 

Ah,i didnt say you couldnt fit one to a classic,just wether its meant to be fitted ! LOL

 

http://www.knfilters.com/oil_filter/...a_wrx_sti.aspx


http://www.knfilters.com/oil_filter/subaru_impreza.aspx

 

If the 1015 one could be used,even tho its not listed,it doesnt have the antidrain back valve (but the other model does,1008,so there is a varying factor in how they are made if that makes sense)

Part HP-1015 Product Specifications
Product Style: Oil Filters
Height: 2.99 in (76 mm)
Outside Diameter: 3.14 in (80 mm)
Thread Inside Diameter: M20x1.5
PSI Relief Valve: YES
Anti Drain Back Valve: No
Style: Canister
Removal Nut: Yes
Gasket Material: Nitrile Rubber
Filter Material: High Flow Premium Media
Bypass Valve: Yes
Weight: 0.72 lb (0.33 kg)
Product Box Length: 3.5 in (89 mm)
Product Box Width: 3.5 in (89 mm)
Product Box Height: 3.38 in (86 mm)



Dunno,maybe they call the 95 turbo something else ????

 

The weird thing is k&n only list 1.8 and 2.2 model classics as they only do a 2litre in newage, and yet the original oe black filter is listed as 93 to 2007 all models.Either way they all do the job its just personal preferance.

 

To cut a long story short, i run one, had no problems, i have done well over a thousand miles with it, and i am due to change the oil again next weekend, and i will be buying another k&n oil filter, listed as recommended or not.

People will always chip in with what they think is best, or dissuade people from doing something, thats great, but sometimes you gotta do what you just gotta do.

 

Mine didnt come loose, but it still spat it's oil seal out and pissed oil all over my headers.

Only time in my life this has happened to me, and that's in 28 years of doing this, on every concievable type of engine configuration.

I dont trust these filters.

QED

 

Seems to be overpriced.

http://forums.nasioc.com/forums/show....php?t=1514889
https://www.scoobynet.com/general-te...il-filter.html

 

K&n one has the incorrect bypass valve pressure. The subaru pump requires a 23psi bypass (which the blue filter has)

See post 10 for subaru oil pump spec

http://forums.nasioc.com/forums/show....php?t=1879204

Only thing I'm not sure on is whether someone has got hold of oil pump spec for late twin avcs cars (as aparantly it's higher flow). So maybe one of the experts can confirm. But there's a few posts on nasioc about the oil pumps requiring a 23psi bypass equipped filter. Would make sense that something with a higher pressure pump would require a stronger bypass. Even more so when you consider the amount of impreza owners that use the 'incorrect' grade of oil (ie 15w50). I'd assume that a 15w50 and any non oe filter when cold will be bypassing the filter media a lot longer with 13psi differential than a 23psi differential. Also high rpm's with thicker oil and low unsuitable bypass equipped filter could cause bypassing of the filter media again.

This is why I've been to mazda and bought an 09> rx8 oil filter as it is made by the same company as the old subaru one and has a 23psi bypass.

And my term 'incorrect' doesn't mean i think people are wrong using it in specific applications but rather incorrect based on the original desgin for the oil pump and oil filter specs.

ie if this bypass info is correct (and it does appear a subaru source) then people using a 15w50 and a k&n or blueprint filter will be getting a larger amount of bypassing of the filter media compared to using the oe spec oil and filter. Lets face it if the filter was specced with 23psi bypass with 5w30 oil then just changing to a thicker oil is going to cause greater bypassing when cold or possibly at high rpms.

In the old days subaru used to have a large oil filter, I wonder if it had a lower bypass pressure, maybe when they changed to a smaller filter they upped the bypass pressure.

 

This is exactly the same thing that happened to me and Stew's HKS drag car, my car couldnt be finished on the rollers just incase it hit the headers, but Stews did catch fire, in some ways it was lucky it was at the rollers, as the fire could be put out straight away without causing any damage.... but if it had happened out on the road it would have been a totally different story

 

£30 For a oil filter. as someone said save your money and buy better oil.

 

cheers mate and yes it does lol

 

There you have it, you didn't do it up tight enough! I guess motorsport tech John Felstead also didn't do his up, muppets

 

I dont like to boast so thought I would remove at least 9.9% from the truth in the name of modesty.

 

If you guys are asking K&N for specifications, the most important one would be:

What size particle does your filter medium filter out and how does this compare with the standard filter?

Lets not forget, this is a "Filter" so that part of its specs is certainly one of the most important, and I note it isnt listed in their comprehensive specification sheet.

 

OEM filters are fine, i mean think about it this way the dealers use these and would they use something that would cost them in warranty work if they were not upto the job. Ive never had an issue with them and used loads.

 

[QUOTE=Stu @ Internet Brands;9943407]If you guys are asking K&N for specifications, the most important one would be:

What size particle does your filter medium filter out and how does this compare with the standard filter?
That's exactly what I thought when I saw spec list. Being a filter no mention of material or it's filtration capability at given pressures/temperatures or how much better it is so at the end of day if you want to pay more money for a prettier looking can go for it, but I'll stick to £10.66 for the oem & pat the extra money on top notch synthetic oil as the oil 1) is very clean 2) my engines in excellent condition so not a problem with crud being swept around it's insides.
At least with an air filter u have the issues of contaminants enter the engine but unless your engines totally knackered or you don't use a flush before draining the oil or refill with chip fat the oil filters job is minimal

 

[QUOTE=BlobEyedRex;9944538]Engine flush is a another contentious issue!

https://www.scoobynet.com/general-te...ine-flush.html

 

Im a old git now and ive never flushed a engine in my life. Is there any gain from it,i thought get the oil hot drain replace job done.

 

Only flush on older engines & and if using cheaper oils IMHO, I don't bother as I use quality synthetic oils do no point as they don't break down like bargain stuff so & part of paying more is they include cleaning agents in that as well.

All this stuff is really individual choices based on what your situation is, if your looks cruddy, high mileage then yes worth it but if you oil change regular and use premium products not worth it

 

And if you use 10 bob oil in a impreza you deserve engine problems IMHO

 

Criminal & same goes for semi-synthetic which is just hydro-cracked mineral oil pure marketing gimmick your better off with a quality pure mineral

 

Forgot to put as it'll cost less than the semi & semi nearly costs as much as fully

 

hey Guys this is gonna run and run aint it! here is my two Penny's worth!!. we have maintained a 08 STI type UK from new it has now done 90,000!! we have always had Genuine parts and the doomed blue filter! it has had 5/30 fully syn oil in it and the guy has never had a problem with it, being an independent garage we also use factor parts and those parts include Fram filters which make the "blue filter of doom" we have never had an issue with their oil filters and we do use a lot of them!!, as it has been stated many manufactures use paper capped filters with no problem, i think this has been started by a Mad Yank with little knowledge of what he is talking about and scares everybody into thinking their engines will self destruct with this filter on, i think that the STI we do is testament to fact that with is nothing wrong with the filter at all, i have one on mine and iam due an oil change soon, i will be using the Blue one, each to their own i suppose!!

 

http://cgi.ebay.co.uk/STI-Sports-Oil...item19c3d5cdde

are these a good filter then? i am in process of building my engine and dont want to fit a crap filter, cheers