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Old 05-06-2003, 07:09 AM   #1
mykrrrr
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Question OEM WRX exhaust on GC6/8 Swap

Does anyone know if the OEM new age WRX exhaust (cat back) will fit on a GC6/8 car???

I'm (knocks on wood) hopefully getting a motor swap this summer and wanted to cut costs a bit by getting a used OEM WRX exhaust as a temporary set up until I can get something a bit better.

I know the flange and 3rd hanger on the backbox are a bit different on both cars but is the midpipe the same??? Will the MP/header flange sit in the same place???

TIA...

-mykr.
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Old 05-06-2003, 11:37 AM   #2
Jaxx
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it is my understanding that the length and general demensions are the same but that some of the hangers are missing/in the wrong places. i too am going to do this
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Old 05-06-2003, 11:48 AM   #3
mykrrrr
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The backbox hanger is the only one I've heard that's different so if the MP hanger is in the same position it should mate up.

Anyone else know???

-mykr.
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Old 05-06-2003, 11:48 AM   #4
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The flange won't matter if you get the whole turboback. It is the same where it bolts to the turbo. The front most hanger on the muffler is located on the opposite side, but that is easily fixabe or you can just get 3 stiff exhaust hangers for the other mounting points.
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Old 05-06-2003, 12:47 PM   #5
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Mike,

All you have to do is come over and look at my HKS WRX exhaust. But like garface was saying, I basically got the Kartboy hangers for now until I can get the 4th mounting point rewelded to the rear crossmember. You can just run on 3 stock hangers but the b-pipe will clank if you make really hard turns like me.
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Old 05-06-2003, 07:30 PM   #6
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I was using the stock wrx exhaust for quite sometime before I opt'd the MRT unit. The only issue is the backbox hanger near the rear axle area. no biggie.. any muffler shop can fix that for ya.
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Old 05-06-2003, 07:41 PM   #7
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Do you alter the mount on the muffler itself or alter the hanger on the chassis? It'd be really cool if it can be configured exactly the same as the GD exhausts so anything is bolt-in. Make it a whole lot easier to buy one of those gorgeous turbobacks and not have to hack up the hanger to make it fit.

-Jon
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Old 05-06-2003, 10:15 PM   #8
mykrrrr
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David - I'll just have to come over and check it out the swap process huh??? Check yer PMs as well.

stimpy - You just need to cut off the 3rd hanger on the backbox and rotate it 180 deg.

Thanks guys!!! I can now sleep well knowing that I'll be able to save some $$$ when I get to the swap point by using an OEM WRX cat or turbo back system.

-mykr.
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Old 05-07-2003, 12:44 PM   #9
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Quote:
Do you alter the mount on the muffler itself or alter the hanger on the chassis? It'd be really cool if it can be configured exactly the same as the GD exhausts so anything is bolt-in. Make it a whole lot easier to buy one of those gorgeous turbobacks and not have to hack up the hanger to make it fit.
Some people hack the hanger on the exhaust itself but I didn't want to do this in case I were to sell it again and buy another WRX exhaust. And for the fact that my car is already hacked to death and probably can't be sold as a "stock" car anyways at this point.
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Old 05-10-2003, 03:25 AM   #10
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while installing the wrx catback on my 95 it doesnt fit, it's a bit short.
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Old 05-10-2003, 02:07 PM   #11
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what engine swap are you doing? if it is JDM then your WRX exhaust won't be the right length 3 1/2 inches to long. you have to cut the downpipe by that much and get flange rewelded to make the curve in the exhaust go in the right place. I went with Invidia downpipe and custom titanium exhaust straight from japan exhaust system. Had to cut downpipe by 3 inches or you can split it up do two inches downpipe then 1 1/2 on exhaust system. your choice. hope this helped.
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Old 05-10-2003, 02:10 PM   #12
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the reasoning is because the JDM downpipes don't have the cat so it is shorter 3 1/2 inches. so if you went with stock downpipe and after market exhaust system will be short that much.
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Old 05-11-2003, 03:50 PM   #13
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Quote:
Originally posted by AWJunkies
the reasoning is because the JDM downpipes don't have the cat so it is shorter 3 1/2 inches. so if you went with stock downpipe and after market exhaust system will be short that much.
My JDM downpipe does have a cat.
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Old 05-26-2003, 06:07 PM   #14
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picture >1000 words
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Old 09-17-2003, 02:48 PM   #15
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Jaxx, can you get anymore pics of underneath? Jaxx, what kind of setup are you running underneath there?
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Old 09-17-2003, 03:21 PM   #16
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Kevin, are you going to run with or without cats? I'm going to keep my Brullen cat-back and get a mid pipe made to match it up to my JDM downpipe. That way I can go with any Gen1 catback and not worry about hanger relocation and such.
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Old 09-17-2003, 03:28 PM   #17
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Well, after riding in a GS-R with a greddy pipe, and the stock muffler, my thoughts have expanded. On his car, there was no sound at all, once he got on it above 4K RPM, the thing just exlpoded from no where, i'm hoping I can get the same affect with a stock muffler. I have the Cusco downpipe which you've seen. I am pretty sure the OEM Cat-back setup will just bolt right into the end of my downpipe. The exhaust hanger doesn't seem like that hard of an issue, just chop it off and rotate it 180degrees.

I'm still going to keep my Blitz axle back and get 3" piping made to fit onto the end of my d/p for track days, and whenever I just feel like ripping around pretty hard, but for daily use, I think the OEM cat back from the WRX is the smart choice.

Let me know what you think Jud....
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Old 09-18-2003, 11:28 AM   #18
Jaxx
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i had a hks DP + the stock wrx cat back .. it was tooo quite

so i took the tanbe hyper medalion off my gda .. much better now...

fits with zero issues other than the hanger ... which i am not using at all

with in the next month i have to take it off and put a full wrx exaust back on w/ stock dp.. for emissions

-j
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Old 09-19-2003, 12:32 AM   #19
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I have the Borla (WRX) exhaust on my swap and I was able to get two of the hangers to fit but the one on the backside of the muffler is way off. I hope to get you some pics. I had a custom cat section made so I don't have any cats fromt the downpipe back. I don't know how the stock cat fits in other words.
Take it easy, Micah
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Old 09-19-2003, 10:21 AM   #20
Puckaveli
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You might want to get it confimed that the stock stuff will mate up with your dp because it's JDM length and the US dp's a shorter.
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Old 09-19-2003, 10:42 AM   #21
Jaxx
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yes, puck hit it on the nail on the head there
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