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Old 07-22-2003, 02:57 PM   #1
JDMTEG98
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Thumbs up Removing the Intake Silencer Benifits and Negatives?

Well here's my deed to the forum. I have some pictures that may help. Basically a very easy removal of two items. There are two screws on the "Y" looking piece and two in side the fender wall for the big jug piece. Took about 30 minutes because one screw in the fender wall (Off the jug) was stubborn and kind of hard to reach. I only took the car out 1/4 mile afterwards but you can here the diverter valve and turbo spooling. Sounds much much better . Could not tell if the turbo was spooling sooner but may be cause of the short ride

My concerns
1) Warranty issues (Which I doubt will be a problem since I can easily reinstall this)

2) Big hole it left open in side wall of the engine bay What are you guys using to seal this hole?

Benefits (From what I read)
1) Turbo Spools faster
2) Is louder and more performance sounding
3) More air is available (Less constrictive)

Negatives
1) Are their any???? ??









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Old 07-22-2003, 03:53 PM   #2
CreoWRX
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If you're talking about the front left hole that's left after removing the cold air feeder, Subaru makes a flat panel that fits into it (used on the Impreza 2.5 I believe). I'll try to get a picture later...

-Mike-
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Old 07-22-2003, 06:20 PM   #3
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http://www.subaruwrxparts.com/per-wrx-drivetrain.html

scroll about half way down the page to find it, only costs $5, but unfortunately it's like $8 to ship


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Old 07-22-2003, 07:57 PM   #4
Leonardo
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Or do as we do here.

we cut a hole on the face of the belly in the silencer that faces the front of the car. Basically the only thing you don't cut out is the mounting point. When installed, this creates a "ram air" effect with the opening of the fog light cover or if it's a tough race/solo events, remove that fog cover for added benefits. Don't worry about water as if you hit a deep puddle, the uper intake takes over and no water will go up.

Tried and tested sine the WRX came out.

Leo
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Old 07-23-2003, 10:42 AM   #5
JDMTEG98
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Quote:
Originally posted by Mrsir
http://www.subaruwrxparts.com/per-wrx-drivetrain.html

scroll about half way down the page to find it, only costs $5, but unfortunately it's like $8 to ship


Wow so how does this fit in their?

The silencer itself is not instheir anymore (i.e. the big jug piece)
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Old 07-23-2003, 11:03 AM   #6
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You know what that piece looks just like the hole thats left. See pictures below along with my temporary and very much getto solution






Planing on ordering that black peice
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Old 07-23-2003, 11:18 AM   #7
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Quote:
Originally posted by JDMTEG98
You know what that piece looks just like the hole thats left. See pictures below along with my temporary and very much getto solution


Planing on ordering that black peice
What did you do to ensure that your airbox is fixed into the hole of the fender wall once you removed the silencer (which makes the airbox loose).
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Old 07-23-2003, 11:18 AM   #8
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Your last picture was pretty funny Sorry, not to laugh at ya; I have done similar things (tape stuff) with my old GSR. Heh, doesn't the OEM plastic funnel serve a purpose to suck cold air from the front in? If you remove that, then sure, you can get more air, but, it's basically hot air from your engine compartment? Cold air -> good, hot air -> bad. I don't know if I want restrictive cold air, or free-flowing hot air

EDIT:: Ignore my post... I now see that you are sucking air from the fenderwell... My bad!
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Old 07-23-2003, 11:56 AM   #9
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Is it possible to get the black intake screens that used to be installed on the hood in the 2.5 RS? I would think having the hood air intake would be better (further off the hot tarmac) than a fog light intake.

I also really don't understand why they routed the intake hose under the red manifold piping before reaching the turbo. Routing it between the block and the intake manifold seems like the worst way to design it (short of putting it between the exhaust manifold and the block). Is there a reason they did this (emissions, maybe)?

Has anyone tried installing an intake that routes straight down from the hood into a 90 deg bend into the turbo? I imagine a 90 bend might cause flow problems at the compressor inlet. Or is there an aftermarket insulated air hose that would reduce the intake charge heating from the manifold and block?
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Old 07-23-2003, 01:04 PM   #10
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Quote:
Originally posted by STi-Mulation
(which makes the airbox loose).

Its not loose just checked, its vermuch stable.
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Old 07-23-2003, 02:54 PM   #11
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he's referring to the gap that you now have between the airbox and the fender, you are still breathing warmer air.
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Old 07-28-2003, 11:44 AM   #12
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hey guys i am trying to do this mod but what happen is i couldnt get the screw out from picture 3 post by JDMTEG98

if anyone can tell me how to take it out that will be great since it has so little space to reach and i dont wanta mess up the screw

also do i need to cover that hole after the silencer is remove?
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Old 07-28-2003, 01:45 PM   #13
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There is only 4 screws to remove. The one inside the fendorholding the "Jug" piece in is hard to get to. I used my finger to loosen it. Keep tryinging.

I ordered that piece from Subaru Parts. I will snap a pic with it on once I get it
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Old 07-28-2003, 01:51 PM   #14
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if you have an STi then this will save you tons of time...TAKE OF YOUR FOG LIGHT COVER...i could easily get inside the fender to remove all the bolts

-gilbert
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Old 07-28-2003, 02:30 PM   #15
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Quote:
Originally posted by Mrsir

scroll about half way down the page to find it, only costs $5, but unfortunately it's like $8 to ship


This part must be available through your local Subaru dealer, so minus 8 shipping!

...but knowing the dealer they'll likely charge $20 for the part and you still have to pick it up!
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Old 07-28-2003, 08:13 PM   #16
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hey gilbert

i dont have the sti i have the plain wrx so the fog light is in the way

i try using my finger but its so hard to unhscrew
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Old 07-28-2003, 08:29 PM   #17
JDMTEG98
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Quote:
Originally posted by G-shock


This part must be available through your local Subaru dealer, so minus 8 shipping!

...but knowing the dealer they'll likely charge $20 for the part and you still have to pick it up!

hummmmmmmm internet good!
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Old 07-28-2003, 08:47 PM   #18
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how about just cutting that snorkel so that u just keep the u part? thats what i did on my wrx. There was a thread about some one making that (u) section
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Old 07-29-2003, 03:14 AM   #19
cann
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wait i don't get it
so there are 3 pieces
one is the funnel shaped that acts like a cold air intake
second is the one that has an air filter in it
third is the silencer box

so in order to get the silencer box out, u need to take all 3 of them out and put the air filter box back in?
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Old 07-29-2003, 03:44 AM   #20
CreoWRX
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You can remove the snorkel and the resonator box without removing the air box (where the air filter is).

-Mike-
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Old 07-29-2003, 03:53 AM   #21
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how tho
isn't the resonator box under the filter?
or is it inside the fender?
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Old 07-29-2003, 10:53 AM   #22
JDMTEG98
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Quote:
Originally posted by cann
how tho
isn't the resonator box under the filter?
or is it inside the fender?

Inside the fendor (i.e. Milk Jug is in the fendor)
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Old 07-29-2003, 01:49 PM   #23
cann
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ahh damn
how to get that out then?
do i have to lift the car and take out the fender plastic?
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Old 07-29-2003, 06:07 PM   #24
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yes
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Old 07-29-2003, 06:09 PM   #25
JDMTEG98
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Quote:
Originally posted by cann
ahh damn
how to get that out then?
do i have to lift the car and take out the fender plastic?
Yes, I raised the passenger side of the car and it slide out once the screw was removed
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