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Old 07-30-2013, 10:32 PM   #1
Pickler
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Default UEL headers for 3.6r Legacy?

Just traded in my 09 2.5i for a '12 legacy 3.6r. Thinking of mods I might do in the future and exhaust is one of them. I was wondering if there are any UEL options for a Subaru H6? Anyone knows anything?
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Old 07-30-2013, 10:34 PM   #2
cal_look_zero
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You can contact www.infernofab.com and see if he'll make you up one.

Won't be cheap though.
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Old 07-31-2013, 01:13 AM   #3
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I wonder what that would sound like? Sounds interesting but would probably be expensive. I say do it so the community can hear it
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Old 07-31-2013, 08:58 AM   #4
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Quote:
Originally Posted by Pickler View Post
I was wondering if there are any UEL options for a Subaru H6?
For what purpose? What do you think unequal length headers will accomplish on a 6-cylinder?
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Old 07-31-2013, 09:58 PM   #5
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Quote:
Originally Posted by Patrick Olsen View Post
For what purpose? What do you think unequal length headers will accomplish on a 6-cylinder?
It will be purely for the sound, i want to bring out the rumble. The stock exhaust is too quiet and im thinking of new headers and catback.
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Old 07-31-2013, 11:07 PM   #6
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Good luck with that. The "rumble" comes from the firing order of the 4-cylinder. You'll never get that with a 6-cylinder, end of story.

Go find any FWD with a transversely mounted V6 - Honda Accord V6, Mitsubishi Eclipse, etc etc. Hear the rumble?
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Old 08-01-2013, 12:38 PM   #7
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^It might sound different than your average 6 cylinder though. Like he said, it is purely for sound. Would I waste my time on something like this? No, but it doesn't bother me that someone else might.
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Old 08-01-2013, 01:33 PM   #8
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not sure what cylinder firing order has to do with it but I installed bbk uel shorty on my 5.0l v8 mustang and it had massive amount of rumble compared to stock.
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Old 08-01-2013, 02:44 PM   #9
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Do It!
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Old 08-01-2013, 03:00 PM   #10
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Quote:
Originally Posted by Patrick Olsen View Post
Good luck with that. The "rumble" comes from the firing order of the 4-cylinder. You'll never get that with a 6-cylinder, end of story.

Go find any FWD with a transversely mounted V6 - Honda Accord V6, Mitsubishi Eclipse, etc etc. Hear the rumble?
Listen to pat i think he is right you can still do it if you want i dont think it will rumble like what your hopping it will sound more uneven kind of like a cam with only a huge exhaust lobb then anything so I don't think it would b smart to many cylenders to get a nice rumble and v8s r differant from v6s a V8 mustang has always had a kachunk kachunk to them I think v6s sound confused with exhausts not loud enough to be a v8 and won't wind like a 4cylender
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Old 08-01-2013, 03:34 PM   #11
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Quote:
Originally Posted by geronimo81 View Post
^It might sound different than your average 6 cylinder though. Like he said, it is purely for sound.
Unless you built headers that criss-crossed the engine to merge cylinders that aren't normally merged, it's not going to sound any different. (And if you did do that, Lord only knows what it would sound like, as there's nothing that I know of to compare to.) If you look at the firing order of a BMW I6, and which cylinders are merged together with both stock and aftermarket headers, and then look at the firing order of the Subaru H6s and which cylinders merge together, they're both the same. Same thing goes for the transverse-mounted V6s I mentioned before.

Quote:
Originally Posted by geronimo81 View Post
Would I waste my time on something like this? No, but it doesn't bother me that someone else might.
It doesn't bother me, either.

Quote:
Originally Posted by Pickler View Post
not sure what cylinder firing order has to do with it
The "Subaru rumble" is a matter of the firing order and which cylinders are paired (and how/where they're paired) by the header. If someone was so inclined they could create the "Subaru rumble" on a Honda I4 by building crappy headers that paired the wrong cylinders.

Quote:
Originally Posted by Pickler View Post
but I installed bbk uel shorty on my 5.0l v8 mustang and it had massive amount of rumble compared to stock.
That example doesn't make any sense, seeing as the 5.0Ls came from the factory with unequal length shorty headers. Installing freer-flowing unequal length headers just makes the already existing V8 exhaust note more noticeable.

It is certainly possible to create a louder exhaust for your 3.6, but if you're expecting there to be any "rumble", you're going to be disappointed.

Last edited by Patrick Olsen; 08-01-2013 at 04:22 PM.
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Old 08-02-2013, 12:43 AM   #12
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double post --- move on

Last edited by Pickler; 08-02-2013 at 12:54 AM.
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Old 08-02-2013, 12:54 AM   #13
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Quote:
Originally Posted by Patrick Olsen View Post
The "Subaru rumble" is a matter of the firing order and which cylinders are paired (and how/where they're paired) by the header. If someone was so inclined they could create the "Subaru rumble" on a Honda I4 by building crappy headers that paired the wrong cylinders.
lol:

Quote:
That example doesn't make any sense, seeing as the 5.0Ls came from the factory with unequal length shorty headers. Installing freer-flowing unequal length headers just makes the already existing V8 exhaust note more noticeable.

It is certainly possible to create a louder exhaust for your 3.6, but if you're expecting there to be any "rumble", you're going to be disappointed.
my dad's 4.6l mustang and my 5.0l cobra both had equal length shortys...i know it because i changed it myself. Maybe they were aftermarket i don't know as I was second owner. but all i know is the sound difference was awesome. it's not matter of flow. Both the exhausts were aftermarket non-production. Here are two clips I found that best resemble the sound I remember.

UEL:

EL:

totally different tone. EL sound more like a high revving V8 sort of like NASCAR cars. The UEL sounds more deep and slow - sort of like a truck. That's the best way I could explain it. UEL is just deadly sounding xD Doesn't have to do with loudness/volume, In fact I would bet you a donut that the EL is louder on same car and exhaust.

Last edited by Pickler; 08-02-2013 at 01:21 AM.
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Old 08-03-2013, 01:30 PM   #14
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Posting clips of cars with different mufflers and different crossovers (X-pipe vs H-pipe) isn't exactly proving your point. I've had mine since '94 and in all the years of playing with Mustangs I can't say I've ever heard or read comments from anyone regarding a sound difference between equal length and non-equal length shorties. If you heard a difference on your cars, well, I guess there's a first for everything.

All that aside, the answer is still the same for your Legacy - there's nothing on the market, and I don't expect there ever will be. If you want a different tone and more volume, changing out the resonator(s) and mufflers is the logical place to start.

Edit: Lovin' the Honda with the Subaru-style header on it! I'm surprised that didn't cause the universe to tear in half based on all the "Subaru rumble FTW"/"OMG I don't want my car to sound like a Honda" type comments on this forum over the years.

Last edited by Patrick Olsen; 08-03-2013 at 01:52 PM.
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Old 08-03-2013, 04:03 PM   #15
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go take a look on legacygt.com there is a whole discussion on this same topic. Those guys will be a lot of help over there. have fun with the 3.6r
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Old 08-03-2013, 11:50 PM   #16
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Quote:
Originally Posted by Patrick Olsen View Post
Posting clips of cars with different mufflers and different crossovers (X-pipe vs H-pipe) isn't exactly proving your point. I've had mine since '94 and in all the years of playing with Mustangs I can't say I've ever heard or read comments from anyone regarding a sound difference between equal length and non-equal length shorties. If you heard a difference on your cars, well, I guess there's a first for everything.

All that aside, the answer is still the same for your Legacy - there's nothing on the market, and I don't expect there ever will be. If you want a different tone and more volume, changing out the resonator(s) and mufflers is the logical place to start.

Edit: Lovin' the Honda with the Subaru-style header on it! I'm surprised that didn't cause the universe to tear in half based on all the "Subaru rumble FTW"/"OMG I don't want my car to sound like a Honda" type comments on this forum over the years.
Yes im curios about the details on how he got the suby rumble. I was sure that the rumble was a characteristic of the boxer engine. Now i'm not so certain. Disappointed? maybe...still it's only exhaust sound.

I'm thinking of staying with EL headers after seeing how some legacy actually sound like 911s. lol hondas -> subaru -> porsche love triangle going on here. Even still I havne't managed to find headers online with proof that would give me any gains. Exhaust/catback I can get custom built.
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Old 08-04-2013, 04:32 PM   #17
Patrick Olsen
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Quote:
Originally Posted by Pickler View Post
Yes im curios about the details on how he got the suby rumble. I was sure that the rumble was a characteristic of the boxer engine. Now i'm not so certain.
As I said above (twice), it's primarily due to the firing order and how the header pairs the cylinders. Subarus fire the two cylinders on one side of the engine (which are paired together by the header), then the two cylinders on the other side of the engine (which are also paired together) - 1-3-2-4. Other 4 cylinders either have a 4-into-1 header, or a 4-2-1 that pairs alternate firing cylinders. To make that Honda sound like that, I'm sure they just modified a 4-2-1 header to pair the "wrong" cylinders.

Last edited by Patrick Olsen; 02-24-2014 at 02:50 PM.
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Old 08-04-2013, 08:29 PM   #18
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even though i understand the science behind it, that rsx still had my jaw dropped. so nutty.
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Old 08-05-2013, 09:58 AM   #19
Patrick Olsen
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Originally Posted by prkskir412 View Post
go take a look on legacygt.com there is a whole discussion on this same topic.
Got a link, by chance?
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Old 08-11-2013, 04:15 PM   #20
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Pickler,
I have a 2011 3.6R Legacy and have found two lads here in Alberta that will design and build headers for my car. One is a mechanical engineer by training like myself and one is a fabricator/welder by training. Both of the gents will make the first pair in existence to my knowledge however they will be very expensive.The point here that you were making is that of rumble and to that I completely agree with Mr. Olsen and his to the point and exacting explanation of the reason of rumble 4 versus 6 boxer engine's. If the two of us decided to go to one of the gents to have the headers built having two sets might gain us some savings however not sure at this time what those savings would be. Let me know if you are interested and maybe we could have a private chat about this subject of headers for our 3.6 engine's.

Pete.
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Old 08-17-2013, 08:48 PM   #21
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I think this is awesome

And i hope you find some uel
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Old 12-18-2013, 08:56 PM   #22
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Uh... Why don't you just get some real headers made up for it that might actually give you some power...

I had these made up for my 97 Legacy when I converted it to an EZ30r in 2011

sounded amazing :P

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Old 12-19-2013, 01:46 PM   #23
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You want it to sound less like a Porsche?!

My point of view: UEL is for kiddies; EL is for grownups.
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Old 12-19-2013, 07:07 PM   #24
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Quote:
Originally Posted by Back Road Runner View Post
You want it to sound less like a Porsche?!

My point of view: UEL is for kiddies; EL is for grownups.
All those 02-14' turbo owners are childish (minus the few 10-12' LGT owners)
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Old 12-20-2013, 11:25 AM   #25
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You could always do this? :smh

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