Subaru Boxer Burble Anyone?.. :) - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Arnie · 07-17-2012, 05:47 PM

Stumbled upon this....seems the closest thing to a Boxer Rumble.

[ame="http://www.youtube.com/watch?v=xU-ebYV-scg"]http://www.youtube.com/watch?v=xU-ebYV-scg[/ame]
Still not sure if they have change the headers to UEL.

its got the burble when revved low...but sounds normal when being floored.

Tainen · 07-17-2012, 05:48 PM

stock headers are UEL, btw.

denkigrve · 07-17-2012, 06:05 PM

The boxer rumble happens at all levels of throttle. All EL headers still have a bit of rumble at idle due to the boxer being a boxer, but the noise everyone wants is during acceleration and normal driving, which will only come from UEL.

Arnie · 07-17-2012, 06:05 PM

based on this pic , I can safely say its not an unequal length.

http://www.tune86.com/sites/default/...ow_2011_72.jpg

its actually a 4-2-1 manifold. this is THE reason why the car doesnt have the traditional Boxer rumble.

Tainen · 07-17-2012, 06:08 PM

We had the header pulled off and mapped. it's UEL. 30%

Tainen · 07-17-2012, 06:13 PM

not trying to be a jerk or anything. I thought they were EL as well until Nameless told me there was a 30% difference in length after they pulled them off and measured them.

Arnie · 07-17-2012, 06:16 PM

ah okay....but it isnt the traditional UEL you'll find on old STi's/Subarus. just comparing it to my '04 STi.
is the length difference alot on the BRZ UEL?..

EDIT: just saw the 30%.....to get more rumble I assume the difference should be much higher.

Tainen · 07-17-2012, 06:19 PM

From what I heard, the bends are pretty different on the STI/WRX headers compared to the BRZ. Maybe that has an impact on the sound- something about the BRZ being more 180 degree type bends, whereas the Impreza has 90 degree bends.

I believe Jason told me the runner lengths have a 30% difference in length. Their header setup is about .08% difference in length, just about equal.

So maybe it's header design that contributes to the rumble, or maybe just the motor itself. Or both.

s2kdrew · 07-17-2012, 11:56 PM

I love the way it is so quiet

igorot · 07-18-2012, 01:23 AM

Quote:

Originally Posted by s2kdrew

I love the way it is so quiet

This, its got a nice tone but yet it doesnt draw attention

CoRi J · 07-18-2012, 01:32 AM

Great cabin sound too

Thongpocket · 07-18-2012, 05:20 AM

LOL @ freaky diki dutch!

http://www.kks-performance.com/index.php?article_id=124

r0ma · 07-18-2012, 06:13 AM

sounds awesome, best sounding exhaust I have heard for these so far.

Harlequin · 07-18-2012, 11:58 AM

@Thongpocket
Its german :-)

07-17-2012, 05:47 PM	#1
Arnie Junior Member Join Date: May 2012 Drives: 2004 WRX STi, 2013' WRB BRZ Location: Dubai, U.A.E. Posts: 8 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Subaru Boxer Burble Anyone?.. :) Stumbled upon this....seems the closest thing to a Boxer Rumble. [ame="http://www.youtube.com/watch?v=xU-ebYV-scg"]http://www.youtube.com/watch?v=xU-ebYV-scg[/ame] Still not sure if they have change the headers to UEL. its got the burble when revved low...but sounds normal when being floored.

07-17-2012, 05:48 PM	#2
Tainen Senior Member Join Date: Nov 2011 Drives: First SWP BRZ-L Location: Washington Posts: 809 Thanks: 154 Thanked 350 Times in 174 Posts Mentioned: 11 Post(s) Tagged: 0 Thread(s)	stock headers are UEL, btw. __________________ First white BRZ in the country Limited SWP BRZ, 35% tint, clear bra, Nameless Performance downpipe, axelback, headers

07-17-2012, 06:08 PM	#5
Tainen Senior Member Join Date: Nov 2011 Drives: First SWP BRZ-L Location: Washington Posts: 809 Thanks: 154 Thanked 350 Times in 174 Posts Mentioned: 11 Post(s) Tagged: 0 Thread(s)	We had the header pulled off and mapped. it's UEL. 30% __________________ First white BRZ in the country Limited SWP BRZ, 35% tint, clear bra, Nameless Performance downpipe, axelback, headers

07-17-2012, 06:13 PM	#6
Tainen Senior Member Join Date: Nov 2011 Drives: First SWP BRZ-L Location: Washington Posts: 809 Thanks: 154 Thanked 350 Times in 174 Posts Mentioned: 11 Post(s) Tagged: 0 Thread(s)	not trying to be a jerk or anything. I thought they were EL as well until Nameless told me there was a 30% difference in length after they pulled them off and measured them. __________________ First white BRZ in the country Limited SWP BRZ, 35% tint, clear bra, Nameless Performance downpipe, axelback, headers

07-17-2012, 06:19 PM	#8
Tainen Senior Member Join Date: Nov 2011 Drives: First SWP BRZ-L Location: Washington Posts: 809 Thanks: 154 Thanked 350 Times in 174 Posts Mentioned: 11 Post(s) Tagged: 0 Thread(s)	From what I heard, the bends are pretty different on the STI/WRX headers compared to the BRZ. Maybe that has an impact on the sound- something about the BRZ being more 180 degree type bends, whereas the Impreza has 90 degree bends. I believe Jason told me the runner lengths have a 30% difference in length. Their header setup is about .08% difference in length, just about equal. So maybe it's header design that contributes to the rumble, or maybe just the motor itself. Or both. __________________ First white BRZ in the country Limited SWP BRZ, 35% tint, clear bra, Nameless Performance downpipe, axelback, headers

07-17-2012, 06:05 PM	#4
Arnie Junior Member Join Date: May 2012 Drives: 2004 WRX STi, 2013' WRB BRZ Location: Dubai, U.A.E. Posts: 8 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	based on this pic , I can safely say its not an unequal length. http://www.tune86.com/sites/default/...ow_2011_72.jpg its actually a 4-2-1 manifold. this is THE reason why the car doesnt have the traditional Boxer rumble.

07-17-2012, 06:16 PM	#7
Arnie Junior Member Join Date: May 2012 Drives: 2004 WRX STi, 2013' WRB BRZ Location: Dubai, U.A.E. Posts: 8 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	ah okay....but it isnt the traditional UEL you'll find on old STi's/Subarus. just comparing it to my '04 STi. is the length difference alot on the BRZ UEL?.. EDIT: just saw the 30%.....to get more rumble I assume the difference should be much higher.

07-17-2012, 11:56 PM	#9
s2kdrew Senior Member Join Date: Jun 2012 Drives: 2013 hot lava FRS Location: GTA Posts: 142 Thanks: 3 Thanked 6 Times in 5 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I love the way it is so quiet __________________ 2013 FRS 2000 S2000 2004 RSX-S 2002 RSX

07-18-2012, 05:20 AM	#12
Thongpocket Master Troll Join Date: May 2012 Drives: 2013 BRZ Limited Location: Charleston, SC Posts: 399 Thanks: 110 Thanked 77 Times in 46 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	LOL @ freaky diki dutch! http://www.kks-performance.com/index.php?article_id=124

07-18-2012, 06:13 AM	#13
r0ma Member Join Date: Jul 2012 Drives: WRX Location: Australia Posts: 34 Thanks: 25 Thanked 5 Times in 4 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	sounds awesome, best sounding exhaust I have heard for these so far.

07-18-2012, 11:58 AM	#14
Harlequin Junior Member Join Date: May 2012 Drives: Mini Cooper S R56 Location: Germany Posts: 4 Thanks: 0 Thanked 3 Times in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	@Thongpocket Its german :-)

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