Aftermarket exhaust for 93 turbo Legacy

Headers, cats, uppipes, downpipes, midpipes and mufflers.

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Mpgingerson
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Aftermarket exhaust for 93 turbo Legacy

Post by Mpgingerson » Mon Sep 28, 2015 12:09 pm

Hello! I currently drive a Legacy 93 turbo EJ20G bone stock and I'm wating for a backbox (afterburner Vortex), but further down the road I want the full exhaust built, but how's the fitment from the Impreza with the same powerplant? For example the downpipe and mid section? I'm looking for something quite loud, so cat's and such is not a must.

mike-tracy
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Re: Aftermarket exhaust for 93 turbo Legacy

Post by mike-tracy » Mon Sep 28, 2015 2:04 pm

Hi and welcome! Nothing fits that's designed for another car. The WRX one arguably hangs too low at the DP, and thr mid pipe is about 8" too short, and the hangers are in the wrong spots.

What most people do is get a WRX exhaust and have a welder make it fit.
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Alphius
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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Alphius » Mon Sep 28, 2015 2:52 pm

I have a GD Impreza exhaust on my turbo swapped car (99 Legacy GT), and I had to extend the front of the midpipe about 4". Also had to weld up new exhaust hangers for all three hanger locations on the axleback. The midpipe hanger was in the correct location. The downpipe was a perfect fit and didn't need to be modified at all.

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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Mpgingerson » Mon Nov 16, 2015 9:54 pm

Okay thanks, but for now I want a new downpipe for obvious reasons, but does the GC8 Impreza downpipe fit bolt on to the factory Legacy exhaust midpipe and turbo? And do you know any good downpipes with no cat? Something like this for example http://scoobyworld.co.uk/catalog/produc ... cts_id=441

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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Mpgingerson » Mon Nov 16, 2015 10:06 pm

And how loud will it be to have a Afterburner back box (4,5"), De-cat downpipe, De-cat uppipe and catted centre section? And the most important thing.. Will it do some small exhaust pops? (a) <3

Pntaste4evr99
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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Pntaste4evr99 » Mon Nov 16, 2015 11:58 pm

I'm rocking the WRX ebay special, that I had to modify basically the hole thing. Just be ready to flex your fab skills.
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Mpgingerson
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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Mpgingerson » Wed Nov 18, 2015 11:48 pm

Pntaste4evr99 wrote:I'm rocking the WRX ebay special, that I had to modify basically the hole thing. Just be ready to flex your fab skills.
Okay, but since I have no welder I'm going to get help from a friend mechanic, but One mote question. How loud will it be to remove all the cats and have a straight trough exhaust system for the turboback. And is there a noticable gain in power and spool time?

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Re: Aftermarket exhaust for 93 turbo Legacy

Post by TurnNburn » Thu Nov 19, 2015 12:33 am

^^^^for a daily driver, like super stupid loud in boost. its fun for a few days but gets old real quick. plus its not worth getting a fix it ticket from the cops for it being to loud. Or pissing off your neighbors when you start it in the morning. Cats don't do to much for sound deadening but at least put a resonator and a muffler. unless your running a GT35 or something along that line then I doubt you would be flowing enough to really notice a difference in spool times. in fact a little back pressure is a good thing.

That being said, I have done this on a few cars and is pretty fun. If you haven't done it before, give it a shot.
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Pntaste4evr99
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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Pntaste4evr99 » Thu Nov 19, 2015 5:16 am

A full 3" TB and a single muffler is pretty loud. But then you'll sound like almost every bug eye WRX out there.....
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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Mpgingerson » Thu Nov 19, 2015 11:49 am

But how would the drone be? My goal for the car is getting it to 250 whp and still having a relyable daily drive, but I have a big backbox now and it improved the rumblw, but I want more. And should a 2,5 " exhaust be good for 250 or will 3" give better flow, but less backpreassure?

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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Pntaste4evr99 » Thu Nov 19, 2015 6:24 pm

3" kits are cheaper, since there's more made sitting and 250 can be reached with a 20g. I daily mine with robtune which ppl say is around 260-300whp. I drive it everyday. U just have to play with diff mufflers and resonators to get the sound u want. I hear that UEL headers give more of a "subie" rumble and EL headers give more power. Your call bud
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Mpgingerson
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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Mpgingerson » Thu Nov 19, 2015 7:23 pm

Pntaste4evr99 wrote:3" kits are cheaper, since there's more made sitting and 250 can be reached with a 20g. I daily mine with robtune which ppl say is around 260-300whp. I drive it everyday. U just have to play with diff mufflers and resonators to get the sound u want. I hear that UEL headers give more of a "subie" rumble and EL headers give more power. Your call bud
The sound is good aslong as I keep the Subie rumble, but I've hear so much about Robstune.. Is it something to get into? How would it work on my car all stock?

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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Pntaste4evr99 » Thu Nov 19, 2015 9:33 pm

Should work depending on which ECU your running. Go on his website, he has all the info there, and there are a bunch of threads on here about making it work, what u need,etc. it's worth it, def fun to drive.
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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Mpgingerson » Fri Nov 20, 2015 1:32 pm

Pntaste4evr99 wrote:Should work depending on which ECU your running. Go on his website, he has all the info there, and there are a bunch of threads on here about making it work, what u need,etc. it's worth it, def fun to drive.

Okay, thanks! But I think I'm going to upgrade the cooling, intake, exhaust, etc first to get the most out of the tune, but I'm sticking with a 3" turboback with a decat downpipe, a midpipe with a racecat and and narrowing it down to 2,5" at the exit to get best exhaust travel speed out, but with one cat installed, will it be obnocious loud and will it spike (check engine) lights?

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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Pntaste4evr99 » Fri Nov 20, 2015 4:44 pm

Can't think I would be to loud, and shouldn't throw a CEL. Our cars only have one O2 sensor, so as long as that's pluged in, should be good. I'll warn u though, the O2 bung in the DP I got I have to move. Again, not really made for our cars, get what u pay for. I got the $70 off eBay, just a heads up.
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Mpgingerson
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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Mpgingerson » Fri Nov 20, 2015 4:55 pm

Pntaste4evr99 wrote:Can't think I would be to loud, and shouldn't throw a CEL. Our cars only have one O2 sensor, so as long as that's pluged in, should be good. I'll warn u though, the O2 bung in the DP I got I have to move. Again, not really made for our cars, get what u pay for. I got the $70 off eBay, just a heads up.
Well, if it doesen't trigger the light I might aswell just rid of all cats for easier modding. I'm going with the Scoobyworld Afterburner DP and middlepipe since it has the holes forbthe sensors

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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Pntaste4evr99 » Fri Nov 20, 2015 6:45 pm

Sounds like a plan
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TurnNburn
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Re: Aftermarket exhaust for 93 turbo Legacy

Post by TurnNburn » Wed Nov 25, 2015 5:44 pm

In my opinion if you have a small budget the ebay down pipe route is a good choice. Knowing before you go into it that you are going to have to modify the DP to fit properly. And depending on exhaust shops around where you live, have a custom DP back exhaust made up with whatever muffler you want. In the long run, it will be cheaper and fit better to have it made from scratch.
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Re: Aftermarket exhaust for 93 turbo Legacy

Post by Mpgingerson » Fri Nov 27, 2015 10:26 pm

TurnNburn wrote:In my opinion if you have a small budget the ebay down pipe route is a good choice. Knowing before you go into it that you are going to have to modify the DP to fit properly. And depending on exhaust shops around where you live, have a custom DP back exhaust made up with whatever muffler you want. In the long run, it will be cheaper and fit better to have it made from scratch.

My budget is not that limited when working and buying parts for my pride and joy, but yeah. I found a local tuning shop that builds exhausts and will help people with their projects, so I'm going to get them to build a custom exhaust to fit my existing backbox, as this will be a good fit and I can get all the cats and noise suppressing I want :-)

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