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Old 01-06-2002, 04:29 PM   #1
Scoobie Newbie
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World Rally Blue,Moonroof

Default Intake silencer removal

Does this just provide a better sound from the WRX? If it wasn't required why would Subaru put one in? I did a search and couldn't find the answers, only how to remove it.
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Old 01-06-2002, 05:37 PM   #2
DO
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Shiv, dynoed this mod and found that it doesn't give more power but it does change the noise and sound level. I'll try to find the link.
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Old 01-06-2002, 05:42 PM   #3
DO
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click here .
read Shiv's response.
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Old 01-06-2002, 06:14 PM   #4
Keiho
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All it does is just as it's name implies...it's a silencer. Makes things quiet.

Factory cars have to have a certain level of NVH, the general populace of car drivers like their car quiet and free of whistles, whooshes and whatnots.
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Old 01-06-2002, 11:25 PM   #5
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Anyone here planning on removing theirs and if you have already is there any problems Ie. CEL lights etc.
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Old 01-07-2002, 01:05 AM   #6
wrxcanada
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The Jan 2002 issue of Turbo mag has an article on the XS Engineering WRX intake. Their intake system dyno'd out at an additional 14hp. Looks like it runs about $150US.

I think I would rather do this than just remove the silencer. Anybody else try an intake system yet?

By the way, this WRX has 19" Axis NE-0 wheels. I thought they looked great. Probably high cost though, and 17" are OK for me.

Here is a link to ther web site. Click on Apexi. The WRX info is not on the web site yet.

XS Engineering
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Old 01-07-2002, 01:07 AM   #7
grandmasterchan
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ScoobieNewbie: tty CruWRX. He did it a while ago.
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Old 01-07-2002, 10:38 AM   #8
CruWRX
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no problems yet. i just did it for fun, to see what everyone was raving about. it sounds pretty funky now! and no CEL
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Old 01-07-2002, 05:58 PM   #9
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Thumbs up

Did you cut the silencer off and reattach the y connecter? Did you do it by yourself? Nice to know someone in my area that has done it and give me some helpful hints.
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Old 01-08-2002, 12:39 AM   #10
SWITCH
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Just a warning to anyone that wants to try this...

I originally just removed the silencer box and ran a 3" piece of straight PVC pipe from the air box into the fender well. Sounded great but offered no protection from LARGE amounts of dirt and debris. Don't do this if you drive on lots of gravel or have plans to do the occaional rally-x. Although it sounds cool, it's not worth the dirt the car sucks in. I wish I took a picture of what my air filter looked like after two days of rally-x!!!

Instead, cut the air silencer at the Y and then cover the hole. Reinstall the air silencer and ram air scoop. Just make sure to drill a hole that is left when you cut the silencer box off in case any water were to build up in there. However, this really makes it quiet again. It pretty much negates what you would be trying to do.

Now that I've done this mod, I would say that it's really not worth it.
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Old 01-08-2002, 03:08 AM   #11
JakRex
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Agree to SWITCH.
After removed the silencer, now I have to clean up the K&N filter every 2 weeks. You can't imagine how dirty it can be..... also I don't really think it's worth to spend 80 bucks to replace the stock filter with the K&N or other stock size filter. You can try but I can tell you, you can't feel much different with this mod.
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Old 01-08-2002, 01:49 PM   #12
RaceFace
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I removed the silencer as well. I went into it with the understanding there would be no performance advantages with this modification. But, I thought it would be cool to hear the turbo a little more...mod worked well for that. No CEL light. I kept the stock 'ram' air scoop so that it all looks pretty much like normal.
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Old 01-10-2002, 01:02 PM   #13
Chunky_Chicken
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I took it out a few months ago. No regrets. No CELs, no complaints from the dealer, and no excessive crud build up. (I clean the filter every 6000km).

I tossed the y-pipe and the snorkel and made a little extension for the air box (see pic).

There is no performance gain worth mentioning, and you do run the risk of filling your airbox with dirt if your fender well opens up (if the liner stays put, you'd be hard pressed to get a significant amount of crud in there).

One thing I was worried about was rain, but I haven't had any problems. I first did it with the paper filter and was worried that if it got wet it would fall apart taking my MAF wire with it. Either that or just get moist and start growing mildew. But I haven't had any of these problems. And I now run a K&N (which was a waste of $$)

The sound is fun, but don't expect anything more.

The pic is of the extension I made. You're looking up from the ground with the fender well pulled away and the front bumper completely off (surveying for possible light pod mounts). The part is ABS from the local HD. I cut one end off the 90, sanded it down, and wet sanded to a super smooth finish (Pointless -I'm aware- but it made me feel better)

Good luck

-Pete

Oh ya, I do LOTS of gravel driving too (4 hours of driving back and forth on the road used for the night stages in Bancroft), along with trips all over Muskoka and Collingwood.... and a couple fields to... but I have the right to remain silent
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Old 01-10-2002, 01:16 PM   #14
SWITCH
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Part of my problem was that dirt gets in from my fender because the tab holding the inside fender well to the front bumper is broken. Even after repeated attempts to fix it, there is still a gap. After monitoring the situation, I decided to seal off the intake from the fender and just let the scoop force the air through into the airbox.

I guess it's a matter of choice. Just make sure to keep an eye on it. If you do city driving, then it should be no problem.

If you want noise, get a BOV. That's what I've been thinking of doing.

Gotta love those Bancroft roads eh!?
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Old 01-11-2002, 07:32 PM   #15
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Default silencer

I am looking at, for extra insurance, using a clear type of caulk to seal the fender. The type of caulk I will use comes off easy, but provides a good seal to avert any other water.
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