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Old 02-18-2008, 03:13 PM   #1
zacks62fairlane
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Default UEL rs headers vs OBX equal length

i am trying to decide which to get, but i want to know the difference in power and in sound... i love the boxer rumble, so im kinda leaning towards the UEL headers... does anyone have or know a link that i can listen to the two of them, and maybe even the difference in power between the two?
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Old 02-18-2008, 03:44 PM   #2
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bump.....
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Old 02-18-2008, 04:30 PM   #3
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NA sounds are somewhat different from turbo sounds. I can tell you that my EQUAL length headers on my turbo swap DOES sound like an NA when revving freely. When I'm on LOAD the sounds totally change because there's more air flowing OUT and the turbo ECU timing changes the sound as well.

Power will come from equal length headers. Don't expect the UEL to gain anymore than the equal lengths. The UEL's will give you some power, but not like the equal will.
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Old 02-18-2008, 06:29 PM   #4
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I have a before and after towards the bottom on my how-to thread.

http://forums.nasioc.com/forums/show....php?t=1445402

Keep in mind I have a high flow cat on my after videos. Also, my EL headers are the stock 2.5i "exhaust manifold", so it wouldn't be the best comparison, but it should give you an idea.

I would recommend only going EL if you really need that power.

Last edited by ZeppelinPie792; 02-18-2008 at 10:24 PM.
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Old 02-18-2008, 08:17 PM   #5
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I have the OBX and the motor revs more freely. I will post a couple clips but they are from auto-x. I do not have a cat and have a stromung exhaust.
Not the best but you can hear the EL sound
http://video.google.com/videoplay?do...91418067901043

Josh

Last edited by Whiteghost 2.5; 02-18-2008 at 08:24 PM.
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Old 02-18-2008, 10:06 PM   #6
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Quote:
Originally Posted by Whiteghost 2.5 View Post
I have the OBX and the motor revs more freely. I will post a couple clips but they are from auto-x. I do not have a cat and have a stromung exhaust.
Not the best but you can hear the EL sound
http://video.google.com/videoplay?do...91418067901043

Josh
which stromung> dual or single tip?
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Old 02-18-2008, 10:07 PM   #7
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Quote:
Originally Posted by ZeppelinPie792 View Post
I have a before and after towards the bottom on my how-to thread.

http://forums.nasioc.com/forums/show....php?t=1451682

Keep in mind I have a high flow cat on my after videos. Also, my EL headers are the stock 2.5i "exhaust manifold", so it wouldn't be the best comparison, but it should give you an idea.

I would recommend only going EL if you really need that power.
haha, thats a link to this thread...
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Old 02-18-2008, 10:21 PM   #8
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Quote:
Originally Posted by zacks62fairlane View Post
haha, thats a link to this thread...
Whoops, here we go

http://forums.nasioc.com/forums/show....php?t=1445402
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Old 02-18-2008, 10:28 PM   #9
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difference in power? UEL header is for sound. EL headers is for power. You pick one based on which is more important and how much money you have to spend.
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Old 02-18-2008, 10:45 PM   #10
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/\/\ +1 Just curious where you found some OBX EL headers? Do they finally have some @ OBX after all that "we'll have them in a couple weeks" crap that they told everyone for the last 8 months?
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Old 02-18-2008, 11:03 PM   #11
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They're back on ebay...
Check the link, 275$ a pop
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Old 02-18-2008, 11:07 PM   #12
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Quote:
Originally Posted by RaceFaceXC View Post
/\/\ +1 Just curious where you found some OBX EL headers? Do they finally have some @ OBX after all that "we'll have them in a couple weeks" crap that they told everyone for the last 8 months?
I had placed my order for one since September 2007 from the factory, they already shipped them to various distributors, currently there is about 3 distributors on ebay selling them. I am still waiting for mines to arrive from my distributor here in Puerto Rico. Can't wait to get this headers an get a tune.
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Old 02-18-2008, 11:14 PM   #13
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damn! I wanted some of these but ended up going with TWE's since that was my only other option. now im poor! Hope it was worth it!
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Old 02-18-2008, 11:43 PM   #14
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Quote:
Originally Posted by RaceFaceXC View Post
damn! I wanted some of these but ended up going with TWE's since that was my only other option. now im poor! Hope it was worth it!
Which one you got? the super stock one? any pics on the install or exhuast video?
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Old 02-19-2008, 01:19 AM   #15
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Quote:
Originally Posted by RaceFaceXC View Post
damn! I wanted some of these but ended up going with TWE's since that was my only other option. now im poor! Hope it was worth it!
I think you'll like them though.

Though you shouldve just waited a few more weeks. My ceramic coated TWE's will be up for sale soon
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Old 02-19-2008, 12:33 PM   #16
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Mine is the Dual Tip Stromung. I love the sound
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Old 02-19-2008, 03:55 PM   #17
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Quote:
Originally Posted by rougeben83 View Post
difference in power? UEL header is for sound. EL headers is for power. You pick one based on which is more important and how much money you have to spend.
show dyno results where EL vs UEL, EL made more then 2 or 3 hp more.

They don't exist. EL headers only make 2-5 hp more then UEL's. It is a myth that you should go for EL's for hp, UELs for sound. it's such a little difference.

Kevin
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Old 02-19-2008, 04:17 PM   #18
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If I had to chose between 5 more HP and 10 more HP, guess what I'd take...
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Old 02-19-2008, 04:21 PM   #19
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Quote:
Originally Posted by subikid View Post
show dyno results where EL vs UEL, EL made more then 2 or 3 hp more.

They don't exist. EL headers only make 2-5 hp more then UEL's. It is a myth that you should go for EL's for hp, UELs for sound. it's such a little difference.

Kevin
Actually you're talking about peak HP. But guess which one has the nice fat 10-15hp gain right in the middle of the rev band? Look for the dyno results yourself; there's a few of them floating around here.
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Old 02-19-2008, 04:32 PM   #20
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If the OBX E.L. headers are back in-stock then I would suggest goin'
for it. I have the Cobb E.L. Headers on mine and I luv it.
With the improvement in power you'll soon forget the 'rumble' and
fall in luv with the 'VTEC' sound.
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Old 02-19-2008, 04:47 PM   #21
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Quote:
Originally Posted by rougeben83 View Post
Actually you're talking about peak HP. But guess which one has the nice fat 10-15hp gain right in the middle of the rev band? Look for the dyno results yourself; there's a few of them floating around here.
not to be a smart ass, but i didnt ask the question just to make a guess or to search even more for my answer... i would have to guess that the EL give that increase...

i love that boxer sound, but i can also get the obx with a cat for just a little more...

if someone could tell me where the **** i can find a stock rs cat... ive been posting for 3 days on here, rs25, and craigslist to try and find a stock 2.5rs cat and nobody can seem to help.
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Old 02-19-2008, 04:58 PM   #22
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Quote:
Originally Posted by zacks62fairlane View Post
not to be a smart ass, but i didnt ask the question just to make a guess or to search even more for my answer... i would have to guess that the EL give that increase...

i love that boxer sound, but i can also get the obx with a cat for just a little more...

if someone could tell me where the **** i can find a stock rs cat... ive been posting for 3 days on here, rs25, and craigslist to try and find a stock 2.5rs cat and nobody can seem to help.
Well I wasn't responding to you now, wasn't I?

Anyway, I've had both. Boxer rumble wore out like a bad pop song to my ears. Especially when the thing just chokes above 5.5k (I know not a lot of people redline their N/A cars so it's not something I usually point out as a reason UEL "suck" or whatever). The "boxer rumble" is just bad header design from all the exhaust pulses running into each other - the only thing that makes more power in this design are the bigger pipes over stock.

I can live with the EL sound; I've actually grown fond of it. In fact I have a lot more people saying "hay it dun sound like a honda to me!" than anything else. And more importantly I love the nice pop in power it gives from 3.5k straight to redline. Especially when I'm on the highway and I need to pass someone. Yay, no more downshifting to 4th necessary.

Sorry to boil it down to such simple answers, but these are just headers. It's just one part of the car. Don't think too hard about it or you'll get an aneurysm .
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Old 02-19-2008, 05:07 PM   #23
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Originally Posted by rougeben83 View Post
Well I wasn't responding to you now, wasn't I?

Anyway, I've had both. Boxer rumble wore out like a bad pop song to my ears. Especially when the thing just chokes above 5.5k (I know not a lot of people redline their N/A cars so it's not something I usually point out as a reason UEL "suck" or whatever). The "boxer rumble" is just bad header design from all the exhaust pulses running into each other - the only thing that makes more power in this design are the bigger pipes over stock.

I can live with the EL sound; I've actually grown fond of it. In fact I have a lot more people saying "hay it dun sound like a honda to me!" than anything else. And more importantly I love the nice pop in power it gives from 3.5k straight to redline. Especially when I'm on the highway and I need to pass someone. Yay, no more downshifting to 4th necessary.

Sorry to boil it down to such simple answers, but these are just headers. It's just one part of the car. Don't think too hard about it or you'll get an aneurysm .
sweet, your awesome... i think i might be able to make my mind up now!
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Old 02-19-2008, 05:14 PM   #24
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Originally Posted by zacks62fairlane View Post
sweet, your awesome... i think i might be able to make my mind up now!
I don't know if anyone has pointed it out yet, but you don't need a new cat section if you get the OBX headers. I guess this is becoming more and more of an important issue for the 05+ RS guys out there. It comes with it's own little replacement segment that bolts up to the catback.

Only it's just a resonator, so you'll be losing all your cats (good for some, bad for others). You can easily have an exhaust shop cut out and replace the resonator with a hi-flow cat though.
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Old 02-19-2008, 05:19 PM   #25
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yeah, i did notice that, but its not to hard to get that swapped, like you said... but with the better highway usability and the all around better product.
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