foam vs k&n filters?
03-30-2004, 10:36 AM
#17
Registered User
iTrader: (1)
Join Date: Dec 2003
Location: Westminster, Colorado
Posts: 293
Car Info: 2004 Impreza WRX
Originally posted by orwrx
The STi one made of different paper element than WRX factory one. It actually give more flow(rigth amount of flow) to it. What I mean by that is because I tried the Blitz panel filter and it just flow way too much. It will lean out the cylinder, then it will have incomplete combustion which is bad unless you have some kind of A/F correction device like HKS AFR, S-AFC to adjust the A/F mixture. If you just want something that you can bolt on and have some kind of gains, then STI is a way to go!!!!!!!!!!!!
The STi one made of different paper element than WRX factory one. It actually give more flow(rigth amount of flow) to it. What I mean by that is because I tried the Blitz panel filter and it just flow way too much. It will lean out the cylinder, then it will have incomplete combustion which is bad unless you have some kind of A/F correction device like HKS AFR, S-AFC to adjust the A/F mixture. If you just want something that you can bolt on and have some kind of gains, then STI is a way to go!!!!!!!!!!!!
Leaning out your cylinders does make more power but trust me .. Its not power you want. Save your $50 for now and wait until you have engine management or a reflash.
04-14-2004, 03:12 PM
#19
Registered User
Join Date: Feb 2003
Location: San Jose
Posts: 1,792
Car Info: sc300
Originally posted by MO REX
Im not positive but I dont think oiling your filter with motor oil is a very good idea. Motor oil is for lubeing the engine and filter oil is for catching particles.
Im not positive but I dont think oiling your filter with motor oil is a very good idea. Motor oil is for lubeing the engine and filter oil is for catching particles.
04-14-2004, 04:35 PM
#20
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iTrader: (5)
Join Date: Mar 2003
Location: San Francisco, CA
Posts: 182
Car Info: 2003 WRB WRX Wagon
FYI - I just took my 2003 wagon to get it's 30K service and the dealer said my MAF sensor was dirty and gummed up with oil from the K&N filter.
I was getting an intermittent CEL and I guess that's what was setting it off. I didn't know about the history of the k&n and the problems it caused on the wrx MAF sensor so I did a search on i-club and guess what? I'm not the only one who had a problem!
Do yourself a favor and do a quick search... the dealer replaced the k&n with a new paper filter and I just ordered an STI filter. More flow without the oil.
I've used k&n's on all my previous cars/trucks with no problems. But it's just not the best option for our subies.
cheers
I was getting an intermittent CEL and I guess that's what was setting it off. I didn't know about the history of the k&n and the problems it caused on the wrx MAF sensor so I did a search on i-club and guess what? I'm not the only one who had a problem!
Do yourself a favor and do a quick search... the dealer replaced the k&n with a new paper filter and I just ordered an STI filter. More flow without the oil.
I've used k&n's on all my previous cars/trucks with no problems. But it's just not the best option for our subies.
cheers
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