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Old 06-19-2005, 02:00 AM   #1
elijah25rs
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Member#: 59711
Join Date: Apr 2004
Chapter/Region: NWIC
Location: Portland, OR
Vehicle:
2005 WRX
Crystal Grey Metallic

Default Apexi N1 to MY05 WRX Catback

So I traded catbacks with a local 2.5RS with the intentions to lower the volume of my exhaust. I was super iffy about it because I didn't want to lose the power the N1 gave me.

We switched catbacks and noticed right away the sound was less burbly and a bit smoother and higher pitched. You can definately tell when you get on it but just cruising and idling sounds as quiet as stock.

The power difference is noticed right away. I have noticably more mid and high range power, which really surprised me. This was definately an upgrade from the N1 in my opinion. More power, less noise.

All this from a very good looking, tasteful, single polished tip.

Modifications:
Injen Cold Air Intake
Borla Gen 4 Headers
Stromung Cat Pipe
Custom 2.25" Mid Pipe
MY05 OEM Axleback
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Old 06-19-2005, 07:13 AM   #2
Ruff
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Member#: 32131
Join Date: Jan 2003
Chapter/Region: NWIC
Location: Oregon City, OR
Vehicle:
2006 Nissan 350Z
Was 01 2.5 RS

Default

Awesome man, glad that worked out for ya. If time allows I'll try to make it to your grad party tomorrow also.
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Old 06-19-2005, 04:58 PM   #3
anonymous_wolf
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Member#: 57780
Join Date: Mar 2004
Chapter/Region: VIC
Location: Richmond B.C.
Vehicle:
2000 RS sedan, GC6
Blue Ridge Pearl

Default

i'm confused.
so u went from Apex'i N1 to a WRX catback,
but on ur mod list u said u have custom 2.25" mid pipe.
so which one is it?
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Old 06-19-2005, 05:05 PM   #4
elijah25rs
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Member#: 59711
Join Date: Apr 2004
Chapter/Region: NWIC
Location: Portland, OR
Vehicle:
2005 WRX
Crystal Grey Metallic

Default

My mistake. It's a custom midpipe made to fit the WRX axleback. I just assumed people would know the midpipe needs to be fabricated or modified to fit any WRX axleback.
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Old 06-19-2005, 06:34 PM   #5
piker28
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Location: north nj
Default

we do but many people dont

so you have to say what you did, this is surprising to me because the wrx axleback will be much more restictive i know when i had one(older style) its really held me back
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Old 06-19-2005, 06:39 PM   #6
ej25power
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Member#: 14771
Join Date: Jan 2002
Chapter/Region: NWIC
Location: Washington's Mexico aka Tigard
Vehicle:
02 RS
All Silver!

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Not exactly custom, it's a WRX midpipe made to fit an RS

I'm glad you like it I've noticed some gains with the N1 too. Definitely more torque and not as loud as I expected. The tip is a tad big though haha....my gf says I'm on the path to becoming a ricer
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Old 06-19-2005, 08:23 PM   #7
anonymous_wolf
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Join Date: Mar 2004
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Location: Richmond B.C.
Vehicle:
2000 RS sedan, GC6
Blue Ridge Pearl

Default

Quote:
Originally Posted by elijah25rs
My mistake. It's a custom midpipe made to fit the WRX axleback. I just assumed people would know the midpipe needs to be fabricated or modified to fit any WRX axleback.
yeah i know it doesn't fit RS

sorry didn't read through the mod list thoroughly, my bad.

do u know the piping diameter of the 05 WRX axleback?
my friend has custom 2.25" mated to 02 WRX axleback and it seems like it's still quite restricted (he's getting a brullen header back soon). perhapes the 05 WRX axleback is better made. btw, does the 05 WRX muffler still has the whistling sound?

Last edited by anonymous_wolf; 06-19-2005 at 08:50 PM.
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Old 06-20-2005, 01:14 PM   #8
elijah25rs
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Member#: 59711
Join Date: Apr 2004
Chapter/Region: NWIC
Location: Portland, OR
Vehicle:
2005 WRX
Crystal Grey Metallic

Default

Quote:
Originally Posted by piker28
we do but many people dont

so you have to say what you did, this is surprising to me because the wrx axleback will be much more restictive i know when i had one(older style) its really held me back
I was pretty surprised as well. On my first run out, it didn't feel like I had lost any power. On my second longer run I felt a definate mid and high range advantage. My passengers have also noticed a difference in power.

Quote:
Originally Posted by ej25power
Not exactly custom, it's a WRX midpipe made to fit an RS

I'm glad you like it I've noticed some gains with the N1 too. Definitely more torque and not as loud as I expected. The tip is a tad big though haha....my gf says I'm on the path to becoming a ricer
It's odd that we both see gains after trading. The sound is just right with the loud raspy Stromung cat pipe. When my girlfriend first saw the tip she though it was tiny.

Quote:
Originally Posted by anonymous_wolf
do u know the piping diameter of the 05 WRX axleback?

my friend has custom 2.25" mated to 02 WRX axleback and it seems like it's still quite restricted (he's getting a brullen header back soon). perhapes the 05 WRX axleback is better made. btw, does the 05 WRX muffler still has the whistling sound?
I am assuming it's the same 2.25" OD. I'll check it later tonight and report back. I haven't experienced any whistling yet.
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Old 06-20-2005, 01:23 PM   #9
ej25power
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Member#: 14771
Join Date: Jan 2002
Chapter/Region: NWIC
Location: Washington's Mexico aka Tigard
Vehicle:
02 RS
All Silver!

Default

Quote:
Originally Posted by anonymous_wolf
btw, does the 05 WRX muffler still has the whistling sound?
The whistling was only with the 02-04 mufflers because of the tips. Just on NA cars too afaik.
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