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Old 05-12-2014, 11:41 PM   #1
413GC8
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Default Best sounding exhaust for n/a

Poking around looking for the best sounding exhaust for my gc8. Kind of low budget at the moment and looking for really just the low boxer sound. I know of headers I can do eventually. And I've seen some 3inch WRX cat backs for sale at a reasonable price. Wondering what sounds the best for a cheaper price
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Old 05-13-2014, 01:05 AM   #2
MarcoPolo360
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I can't remember if 99 RS headers are UEL or not: If they are, simply get a muffler delete a local muffler shop. Otherwise, don't bother unless you're okay with it sounding like a Honda.
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Old 05-13-2014, 02:51 AM   #3
tee-tea
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You'll sound more like a honda without UEL. tsudo is decent, 600 for the whole system from header, high flowcat and catback.
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Old 05-13-2014, 08:45 AM   #4
cmiovino
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Skip the 3" WRX exhausts... 3" is too large for NA. You want gas velocity up to escape out the tailpipe. 2.25" is generally accepted to be good. No larger than 2.5".

If you're just going for sound, UEL header + a muffler (even eBay canister) actually sounds good. UEL and any exhaust.. just base the exhuast on how loud you want it. I prefer Cobb, Prodrive, ones like that.
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Old 05-13-2014, 09:51 AM   #5
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I have a wrx header modified to fit my mid pipe amd rear cat. Then from there it goes to a the OEM coffin resonator and from there splits into two axlebacks each fitted with a small 6in resonators. I have no mufflers. its fairly loud under wide open throttle but there is no rasp and its all rumble. at 14"hg of vacuum or higher (cruising) its almost as quiet as factory setup.
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Old 05-13-2014, 09:58 AM   #6
bluesguyej25
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Quote:
Originally Posted by tee-tea View Post
You'll sound more like a honda without UEL. tsudo is decent, 600 for the whole system from header, high flowcat and catback.
Compared side to side with a rsx with a full exhaust, and a newer si with cat back my car sounds nothing like them, and I do not use uel. I have a stock mani to straight through to dc sports canister. and it sounds nothing like a honda..and its all 2.5''

The 15's and newer are not using uel because of flow.
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Old 05-13-2014, 10:44 AM   #7
413GC8
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Yeah it's a 99 2.5 rs. I could always have my buddy weld 2.25 inch straight from the cats for now with some can, not to sure which one is cheap and then eventually get the ebay headers
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Old 05-13-2014, 12:06 PM   #8
scoobywagon02
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Quote:
Originally Posted by bluesguyej25 View Post
Compared side to side with a rsx with a full exhaust, and a newer si with cat back my car sounds nothing like them, and I do not use uel. I have a stock mani to straight through to dc sports canister. and it sounds nothing like a honda..and its all 2.5''

The 15's and newer are not using uel because of flow.
A flat 4 will still sound different than an inline 4. It just won't sound nearly as rumbly as a car with UEL. Starting in 06' the n/a Subaru's went to EL headers. 05' and older had OEM UEL headers, but of a different variety from wrx or aftermarket n/a options.
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Old 05-13-2014, 12:46 PM   #9
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stromung
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Old 05-13-2014, 12:52 PM   #10
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Quote:
Originally Posted by apexanimal View Post
stromung
this.
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Old 05-14-2014, 03:19 AM   #11
chazly413
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Stromung, indeed. I have one and I think if you click on the YouTube link under my name somewhere over there to the left you should be able to find videos of it.

Also, I don't think pipe sizing really matters post-header. I can't see a situation where you would want any pressure in your exhaust.
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Old 05-14-2014, 09:36 AM   #12
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Money no object, best sounding is Stromung or Hayward & Scott hands down. I love my H&S. Neither however are "low budget" options OP is looking for.
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Old 05-14-2014, 11:55 AM   #13
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Prodrive oval tip. I was lucky enough to pick one up in great shape a few years ago but they were scarce at the time and even harder to come by now.

If you can find one, jump on it. They are pure Subaru perfection and look and sound great. Subtle rumble with zero drone.
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Old 05-14-2014, 12:56 PM   #14
413GC8
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What about high flow cats, 2.5 or 2.25 tubing and maybe a muffler? Which muffler and depends how much were talking for exhausts I'm trying to avoid 400 and up for an exhaust..
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Old 05-14-2014, 12:59 PM   #15
413GC8
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I was thinking more on the lines of bringing it to my buddy's shop and having him do the tubing maybe high flow cats and then some muffler.

For the year of my car I'm not trying to spend big bucks 1 because I could be doing lowering springs and other things as well and 2 I feel like the difference in spending 150 200 as opposed to 500 you won't notice to much of a difference. Maybe maybe not, but keep it going I'm liking these ideas! So keep stock headers for now maybe eventually get a set too?
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Old 05-14-2014, 01:10 PM   #16
scoobywagon02
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Quote:
Originally Posted by 413GC8 View Post
I was thinking more on the lines of bringing it to my buddy's shop and having him do the tubing maybe high flow cats and then some muffler.

For the year of my car I'm not trying to spend big bucks 1 because I could be doing lowering springs and other things as well and 2 I feel like the difference in spending 150 200 as opposed to 500 you won't notice to much of a difference. Maybe maybe not, but keep it going I'm liking these ideas! So keep stock headers for now maybe eventually get a set too?
You can always keep your stock headers to begin with especially if you're budget conscious. It'll still rumble, just not as much as with a set of borlas or borla reps. If you like it, you can keep it the way it is or choose to spring for a set later on.

This is my setup with stock headers and catalytic converter. Custom non resonated midpipe and H&S muffler.

Not the best sound quality but it's half ass decent.

http://youtu.be/cdASSdUq-XQ

As you can hear, there's still a fair amount of rumble. It's just not as deep and defined as it would be with aftermarket UEL headers.
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Old 05-14-2014, 02:16 PM   #17
chazly413
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Your stock cat flows fine, I wouldn't spend any money on replacing it unless you really start bumping up your power.

For the exhaust, I'd do whatever's cheapest that makes it sound the best to you. You're only gonna see statistically significant performance gains from getting a proper header.

Also, I'm not sure how the stock headers sound on your generation RS, but the 02-05 have really good sounding stock headers in my opinion.
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Old 05-14-2014, 08:05 PM   #18
Bluefoton
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With a 99 you're lucky to have OEM UEL headers to start with, IMHO - so any catback will enhance the existing rumble. A very cheap swap is to use a WRX exhaust, they mate to the cats with no issues. Little difference in sound though. For a little while, I had Borla knockoffs and a stromung dual tip on my 03. The sound was awesome, but - for me - too loud.

06+ owners are screwed to start with, and I haven't seen anything yet that would be quiet volume-wise, but very bass-y (low frequency tones).

Last edited by Bluefoton; 05-14-2014 at 08:11 PM.
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Old 05-16-2014, 08:15 PM   #19
Rudgers73
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Here's my 06 impreza:

http://youtu.be/S-ZlbIz_G-o

This is warmed up to temp, up to 3k-ish rpm. Cold start is a little bit more poppy and rough
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Old 05-22-2014, 11:34 AM   #20
JoeBowHunter
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Here's mine with Original Borla UEL, stock cat and a 3" no name catback.

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Old 05-23-2014, 02:22 PM   #21
ScubaruImpreza05
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Reviving.

I have the Rallysport 2.5i UEL Headers that are designed to bolt directly up to the EL designed exhaust. Are there catbacks that work from that point back? I noticed alot of companies seem not to be making exhausts for that EL setup...Do I need to suck it up and go custom route?

Right now I'm running the OEM setup with a gutted muffler, it's Meh. I was hoping for more rumble or throatiness, but It's a bit more raspy then I expected. Looking for better and possibly lighter options right now.

Thanks!
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Old 05-23-2014, 03:15 PM   #22
Rudgers73
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Changing the resonator would change the sound. Bigger/longer resonators = less raspy sounding. If you want deep and rumbly I would make a custom mid pipe with a bigger off the shelf resonator and pair it with a nice borla or strömung cat-back
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Old 05-28-2014, 07:59 AM   #23
98legacywagon
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2.5 catback
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Old 06-03-2014, 01:55 AM   #24
The007
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Default Cheap eBay exhaust

I just bought a dirt cheap 2.5" catback system for my impreza . I doubt it'll be good but I paid almost nothing for it so I guess we'll see . It'll be better then what I have now though because currently I have no muffler the previous owner cut it off lol
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Old 06-03-2014, 01:57 AM   #25
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Also if you upgrade to a 2.5 inch exhaust does a guy need to get a high flow cat ? Is that mandatory ?
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