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Offline Markkenko

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GD exhaust on a GC
« on: October 10, 2018, 01:48:00 pm »
Has anyone here done it? Perhaps you know of someone that has used a GD exhaust on a GC.
I have a few leads on some well priced GD exhausts, and have read that you simply need to rotate a flange, and move a hanger or two to get the exhaust to fit, but i'm looking for confirmation of that.

Here is a thread that I found regarding the install.
https://www.rs25.com/forums/f5/t109747-running-gd-wrx-sti-cat-back-exhaust-gc8-93-01-a.html
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Offline VTAKLOL

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Re: GD exhaust on a GC
« Reply #1 on: October 10, 2018, 01:59:17 pm »
GD exhausts fit no problem, it’s all I ever had on my GC8, other than the stock exhaust.
Just make sure the downpipe matches the catback (ie USDM downpipe to USDM catback.)
I believe it’s only one hanger that is not used (behind the muffler) and that’s it.
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Offline Markkenko

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Re: GD exhaust on a GC
« Reply #2 on: October 10, 2018, 05:02:02 pm »
Quote from: VTAKLOL on October 10, 2018, 01:59:17 pm
GD exhausts fit no problem, it’s all I ever had on my GC8, other than the stock exhaust.
Just make sure the downpipe matches the catback (ie USDM downpipe to USDM catback.)
I believe it’s only one hanger that is not used (behind the muffler) and that’s it.

Do you need to rotate the flange at all?
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Offline VTAKLOL

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Re: GD exhaust on a GC
« Reply #3 on: October 10, 2018, 06:00:29 pm »
Quote from: Markkas on October 10, 2018, 05:02:02 pm
Do you need to rotate the flange at all?

Not sure which flange you’re referring to as *the* flange, but no, it bolted right up, didn’t have to change or modify anything.
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Offline Markkenko

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Re: GD exhaust on a GC
« Reply #4 on: October 11, 2018, 10:09:13 am »
Excellent. Thanks for the info!
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Offline VTAKLOL

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Re: GD exhaust on a GC
« Reply #5 on: October 11, 2018, 12:08:16 pm »
No problem!
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Offline 4bang

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Re: GD exhaust on a GC
« Reply #6 on: October 31, 2018, 09:32:44 pm »
I just installed a GD axleback with a JDM down and mid pipe, I had to weld on about 3" of extra piping on the midpipe to make it match up (also had to rotate the flange from midpipe to axleback).

People say an entire GD turboback system does fit but I've never personally tried it.
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Offline LilDrunkenSmurf

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Re: GD exhaust on a GC
« Reply #7 on: November 01, 2018, 06:47:31 am »
Quote from: 4bang on October 31, 2018, 09:32:44 pm
I just installed a GD axleback with a JDM down and mid pipe, I had to weld on about 3" of extra piping on the midpipe to make it match up (also had to rotate the flange from midpipe to axleback).

People say an entire GD turboback system does fit but I've never personally tried it.

It will. The big difference isn't GC vs GD, it's USDM vs JDM. USDM has a longer downpipe, and therefore a shorter catback section, whereas the JDM has the shorter downpipe/longer catback section, which is why you needed to weld in the extra material. If you take the entire turboback setup, turbo to tip, it should bolt straight in.
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Offline Markkenko

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Re: GD exhaust on a GC
« Reply #8 on: November 06, 2018, 12:26:25 pm »
The comments posted here can now been confirmed. A GD exhuast does in fact fit on a GC as long as you have the proper setup from your turbo back. JDM GC downpipe will work with a JDM GD exhaust. Note that the one hanger just inside the muffler will not line up, but that's ok.

Thanks to everyone who gave their input. Hopefully someone else can use this information going forward!

Here is my JDM GD exhaust compared to my JDM GC exhaust:






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Offline diamondedge

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Re: GD exhaust on a GC
« Reply #9 on: November 06, 2018, 12:41:32 pm »
sound clips!!

looks like a tanabe or maybe STi genome?
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Offline Markkenko

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Re: GD exhaust on a GC
« Reply #10 on: November 06, 2018, 01:44:26 pm »
Quote from: diamondedge on November 06, 2018, 12:41:32 pm
sound clips!!

looks like a tanabe or maybe STi genome?

Soon enough. I have a lot to post lol. I've been off the forum for quite some time, so I have a decent amount of catching up to do. Keep your eyes out in the build thread for my WRX.

Also, it is not a tanabe or genome ;)
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Offline VTAKLOL

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Re: GD exhaust on a GC
« Reply #11 on: November 06, 2018, 02:39:08 pm »
Quote from: Markkas on November 06, 2018, 01:44:26 pm
Soon enough. I have a lot to post lol. I've been off the forum for quite some time, so I have a decent amount of catching up to do. Keep your eyes out in the build thread for my WRX.

Also, it is not a tanabe or genome ;)

S202?
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Offline Markkenko

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Re: GD exhaust on a GC
« Reply #12 on: November 06, 2018, 02:50:39 pm »
Quote from: VTAKLOL on November 06, 2018, 02:39:08 pm
S202?

I wish I had that kind of money 8)
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Offline diamondedge

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Re: GD exhaust on a GC
« Reply #13 on: November 07, 2018, 09:50:43 am »
Quote from: Markkas on November 06, 2018, 01:44:26 pm
Soon enough. I have a lot to post lol. I've been off the forum for quite some time, so I have a decent amount of catching up to do. Keep your eyes out in the build thread for my WRX.

Also, it is not a tanabe or genome ;)

Can't wait. It's got a symmetrical can, so it throws out Stromung/MadDad/APS/Cobb. Invidia usually stamped. And your pic is taken in such a way that I can't see the juicy bits (the tip). The two resonators also throws me.

I have no idea.


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Fujitsusobobobobo?
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Offline Markkenko

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Re: GD exhaust on a GC
« Reply #14 on: November 07, 2018, 11:56:55 am »
Quote from: diamondedge on November 07, 2018, 09:50:43 am
Can't wait. It's got a symmetrical can, so it throws out Stromung/MadDad/APS/Cobb. Invidia usually stamped. And your pic is taken in such a way that I can't see the juicy bits (the tip). The two resonators also throws me.

I have no idea.


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Fujitsusobobobobo?

 ;D
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