APS Cold Air Intake - Subaru Forester Owners Forum
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post #1 of 21 (permalink) Old 08-19-2006, 09:44 PM Thread Starter
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APS Cold Air Intake

I would recommend this unit. Very well made! The CAI feeds through the hole in the fender that the stock airbox takes air from. I ended up using a dremel and widening the hole a bit to easily feed the tube through. Install was very straight forward. I don't care what people say, this intake needs to be tuned. My fuel trims were a bit off all over the place. The car idled fine but the fuel trims were off. After logging and tuning the intake it seems okay now. I still have more work to do tuning it.

The BPV sound is much more noticeable now. The car also makes more noise at cruise. There is a "induction sound" constantly now.

Very well made unit.

Did the intake do anything? I think so! I think my stock airbox was becoming a restriction. The highest air flow reading I ever got was 258 I think. I logged today and got 264 on one of my pulls.

CN: APS CAI is very nice unit. Tuning should be done after installing the intake.

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post #2 of 21 (permalink) Old 08-20-2006, 01:52 PM
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So you're saying its well made?

The APS unit was what I wanted to go with but I found a new Injen unit for $108.00. Could not pass it up.

Wish I had the wrinkle finish red though, sweet filter!

Any pics?

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post #3 of 21 (permalink) Old 08-20-2006, 02:11 PM Thread Starter
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Yep, the APS is very well made. There are little details like the hardware included to hold up the hoses and the hardware that bolts the intake to the firewall.

I've heard the Injen hangs a bit low. I picked the APS because it didn't place the filter as low also. The wrinkle red finish is really nice also.

I may take some pics later today.

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post #4 of 21 (permalink) Old 08-20-2006, 02:17 PM
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Yea, the filter on the Injen is pretty low, it is right behind the fog light.

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post #5 of 21 (permalink) Old 08-20-2006, 07:31 PM
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I have an APS CAI too. Gotta love that induction sound! Are you using the APS filter, Zumble, or a K&N one?

Here's a pic of mine

Cheers!
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post #6 of 21 (permalink) Old 08-20-2006, 10:19 PM Thread Starter
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Mine looks exactly like that. I'm using the filter that came with the unit. So I guess it's the APS one? Is there a larger K&N or something that fits?

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post #7 of 21 (permalink) Old 08-21-2006, 01:38 AM
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Quote:
Originally Posted by ZuMBLe
Mine looks exactly like that. I'm using the filter that came with the unit. So I guess it's the APS one? Is there a larger K&N or something that fits?
I'm using an K&N RU-3130 (oiled type)... I think the APS one that comes with new CAI's now is a non-oiled type(?), but they won't/don't/can't sell me one separately...

Cheers!
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post #8 of 21 (permalink) Old 08-21-2006, 03:48 AM Thread Starter
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Which do you think is more effective?

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post #9 of 21 (permalink) Old 08-21-2006, 06:05 PM
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+1 for APS quality. The down side is that you get spoiled, and everything else is crap in comparison.

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post #10 of 21 (permalink) Old 08-21-2006, 07:21 PM
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Quote:
Originally Posted by ZuMBLe
Which do you think is more effective?
zumble, I'm not really sure... the oiled K&N is a VERY effective filter, but has the minor downside in that I have to clean my AFM more regularly (particularly if I over-oil the filter when I service it). I was therefore very keen to try the APS dry filter, but I cannot buy one separately.

In the end, since I live in a very dusty part of the world, I was happy to stick with the K&N filter.

I actually have two K&N's; one on the car, and the other washed and oiled ready to swap... I can then service the dirty one at my leisure after I've changed them over

Cheers!

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post #11 of 21 (permalink) Old 08-21-2006, 07:30 PM
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Quote:
Originally Posted by ZuMBLe
I would recommend this unit. Very well made! The CAI feeds through the hole in the fender that the stock airbox takes air from. I ended up using a dremel and widening the hole a bit to easily feed the tube through. Install was very straight forward. I don't care what people say, this intake needs to be tuned. My fuel trims were a bit off all over the place. The car idled fine but the fuel trims were off. After logging and tuning the intake it seems okay now. I still have more work to do tuning it.

The BPV sound is much more noticeable now. The car also makes more noise at cruise. There is a "induction sound" constantly now.

Very well made unit.

Did the intake do anything? I think so! I think my stock airbox was becoming a restriction. The highest air flow reading I ever got was 258 I think. I logged today and got 264 on one of my pulls.

CN: APS CAI is very nice unit. Tuning should be done after installing the intake.

What turbo are you having in ur Forester, yours 2.0 or 2.5 XT.

With that sort Mass Air Flow figures you ride is producing around estimate 330 ~ 340 hp on crank.
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post #12 of 21 (permalink) Old 08-24-2006, 01:24 PM
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+1 more for the APS. I've had it for almost a year now (with a tune) and I love it. Induction and BPV sounds are a bonus and have officially rendered my stereo worthless.

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post #13 of 21 (permalink) Old 08-24-2006, 01:52 PM Thread Starter
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I'm running a TD05H-16G. Max airflow I've seen was 268g/s with the APS now. As for power, I should have around 330chp as I had 276whp when I was tuned last year.

Quote:
Originally Posted by Walbro
What turbo are you having in ur Forester, yours 2.0 or 2.5 XT.

With that sort Mass Air Flow figures you ride is producing around estimate 330 ~ 340 hp on crank.

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post #14 of 21 (permalink) Old 08-24-2006, 01:54 PM Thread Starter
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I have to get over hearing the sound... I like having quiet power but the sound is pretty addicting. I found myself going in to boost and letting go just to hear it now. My passengers have been dealing with a jerky ride lately.. =)

Quote:
Originally Posted by LexiconXT
+1 more for the APS. I've had it for almost a year now (with a tune) and I love it. Induction and BPV sounds are a bonus and have officially rendered my stereo worthless.

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post #15 of 21 (permalink) Old 08-24-2006, 02:07 PM
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Quote:
Originally Posted by ZuMBLe
I'm running a TD05H-16G. Max airflow I've seen was 268g/s with the APS now. As for power, I should have around 330chp as I had 276whp when I was tuned last year.
What is the torque that you are seeing at the wheels w/ your setup?
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