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Old 07-17-2004, 02:57 AM   #1 (permalink)
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While at the local Subaru dealer today, I was talking with one of the parts dept people and he was telling me about Green Air Filters. I haven't heard much about these and was curious if anyone is using one on their Outback? TIA...traintrackker
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Old 07-17-2004, 10:02 AM   #2 (permalink)
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Green, Perrin, K&N, Fram Air Hog, Amsoil...All the same concept--flow air better but not filter better (compared to a paper filter) Oiled gauze, oiled foam, they're all the same pretty much. I have an inline PRM reusable filter in my CAI.

They work great, don't filter as good as paper, and are reusable. I don't recommend getting one if your car is MAF based (older Subaru's) Brian
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Old 07-17-2004, 05:23 PM   #3 (permalink)
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Brian, the parts person at the local Subaru dealer had high remarks for the Green filters, which they also sold, and I was curious as to how they ranked compared to K&N...I've got an '01 Outback with the 2.5 and I don't think I've got MAF so eventually, I imagine I'll break down and get one of the replacement panel filters. As for the CAI, I just have a hard time justifying almost $300 for maybe 5-8 hp on a good day...traintrackker
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Old 07-17-2004, 09:34 PM   #4 (permalink)
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Sure, I understand. However, with a N/A motor 5-8 HP for $300 is a great commodity if that's your last try for HP. But realistically, I made the wife a PVC intake to her stock airbox with a K&N filter and that alone made a difference in her Baja. Brian
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Old 07-19-2004, 02:20 AM   #5 (permalink)
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One last item, the parts person at my Subaru dealer said that if I wanted to dump all the air silencing crap off the stock air intake and go with the replacement panel filter, I'd see an improvement. I'm curious if anyone else has attempted to modify the stock set up.
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Old 07-20-2004, 09:34 PM   #6 (permalink)
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I've been using K&N filters for over 20 years with no problems. I did switch to a Green filter on my F XT. I've found the quality to be very good compared to the K&N. I've used this style of filter on 4 subaru's so far (MAF Based) with no problems. Just do not over oil them. Have a look here:

http://www.scoobymods.com/forums/showthread.php?t=2271

Also search Snorkus (silencer) on our site and you can see how to remove the silencer restriction.
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Old 08-05-2004, 06:15 PM   #7 (permalink)
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"Oiled gauze, oiled foam, they're all the same pretty much. I have an inline PRM reusable filter in my CAI.

They work great, don't filter as good as paper, and are reusable."

it's the same principle as the old VW oil-bath filters, more or less. i do disagree on the oiled foam; i've used both types on my bikes and the gauze (K&N) type flows lots better than the foam, altho latter prob does trap a bit more dirt.

Brian, any way you could post a foto of your mod on wife's car? been meaning to do the Home Depot plan CAI for a while, and keeping the stock airbox was one of my objectives (i think that assuming equal filter medium, keeping stock airbox will filter out more crud than cone type)(around here, where we get lots of dust storms, just the length of the intake passages will cause a lot of the real estate to fall out of suspension in the air stream...)

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Old 08-05-2004, 08:26 PM   #8 (permalink)
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cpt, I used 3" PVC pipe (drain,waste...) What I did was extremely easy. Two 45's, less than 12" straight, one rubber 3" to 2.5" connector with the hose clamps already on the ends recessed slightly in grooves. All I did was measure the length between the 45's, dry fit it, find the right angles for the tube to fit into the open fender hole that the stock setup left. The rubber connector could not have fit/worked better, beautiful setup, attatched right to the plastic nozzle piece facing the front of the car.

Stock airbox used still, did not even move it, just took the silencer, and the rest of the plumbing off. Now, I used two 45's that are elbows with one side female and one side male so to speak, in the biz they are called street ells. The male side went into the hole in the fender, coupled with the straight pipe glued right into it, then straight pipe glued right into the other 45's female side, then rubber connector onto the male side of the 45, right onto the black plastic snorkel piece on the air box.

Literally that simple, and I shoud get a pick of it. I painted it black and it did make a difference. The non-mechanical wife can even tell . MY03 Baja (Legacy) 2.5 liter. It looks better than anything on the market for stealthness being black, and it fits perfect. I suggest everyone to do it. Cost me $17 in materials including the cleaner/glue. Brian
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Old 08-06-2004, 06:17 AM   #9 (permalink)
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When I bought my 1988-1/2 Escort it came with a primitive 2-stage air filter, some coarse white plastic weave around a basic paper core. The NAPA replacement part had a foam sleeve around it. I used one filter for many thousands of miles, just washing and oiling the foam once in a while.

OTOH that 3800 in the LeSabre I'm driving now breathes through a filter about the size of a video tape.
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Old 08-06-2004, 09:25 AM   #10 (permalink)
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bheinz57,
Please please please send a picture of your intake! I just bought a k&n filter and i would love to replace that huge mess of an intake system. But im curious, does the sund level increase by a good margin when you remove all the silencing crap?
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