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      07-16-2010, 01:04 PM   #1
Kyoshi71
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GTS Exhaust

Edmunds says the GTS Titanium exhaust is manufactured by Boysen.
Anyone know more about their products other than sporadically appearing as OEM for Porsche?
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      07-20-2010, 03:33 PM   #2
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Quote:
Originally Posted by Kyoshi71 View Post
Edmunds says the GTS Titanium exhaust is manufactured by Boysen.
Anyone know more about their products other than sporadically appearing as OEM for Porsche?
Well I donīt know Edmund or where he gets his info from but the Ex Sys for the GTS is done by Light weight.
here a closer look :

By great_white at 2010-07-20

hope I could help
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      07-26-2010, 02:14 PM   #3
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Quote:
Originally Posted by Great White View Post
Well I donīt know Edmund or where he gets his info from but the Ex Sys for the GTS is done by Light weight.
here a closer look...hope I could help
Hmmm...Interesting. I have asked this question and was told that it was made by "Arvin Meritor" in this thread...

Who can confirm?
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      07-26-2010, 02:39 PM   #4
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im pretty sure its made by Akrapovic
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      07-26-2010, 02:59 PM   #5
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if it is the Boyesen i know they make reeds and reed cages for 2 stroke race bikes. i have used there products in the past when i raced 2 strokes. i know use 4 stroke engines so they don't have reeds they have valves. Boyesen also makes a product called the quick shot which lets more fuel in. some other stuff too but never for a car have i seen unless it was a one time gig, or a different company with similar name

http://www.boyesen.com/cwo/Home
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      07-26-2010, 07:26 PM   #6
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BMW Announced Arvin Meritor as the official exhaust system for the GTS...
The Akrapovic Evolution exhaust is only on the M3 GT4 race car, not the GTS.
Great White claims that it is actually made by a company called "Light Weight"

No one fucking knows which exhaust this car actually has.
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      07-26-2010, 11:20 PM   #7
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Quote:
Originally Posted by Great White View Post
Well I donīt know Edmund or where he gets his info from but the Ex Sys for the GTS is done by Light weight.
here a closer look :

By great_white at 2010-07-20

hope I could help
I guess you are referring to the "pseudo CSL" which is parked right to the GTS, since it has a "lightweight" sticker on.
Fact is the GTS Exhaust is not from them, since the GTS exhaust is a high end product
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      07-27-2010, 03:20 AM   #8
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I think SCOTT has to answer some questions:

Who does the M3 GTS coilovers? KW, Sachs or some other?

Who does the M3 GTS exhaust? Akrapovic, Arvin Meritor, Boyesen, Light Weight or some other?
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      07-27-2010, 05:48 AM   #9
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Quote:
Originally Posted by Levi View Post
I think SCOTT has to answer some questions:

Who does the M3 GTS coilovers? KW, Sachs or some other?

Who does the M3 GTS exhaust? Akrapovic, Arvin Meritor, Boyesen, Light Weight or some other?
what of the articles floating around here said that the coilovers are made by KW. i'm still unsure about that exhaust though.
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      07-28-2010, 07:15 AM   #10
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Eberspaecher and Boysen have been used on BMW cars for many years throughout the range. I have no idea what they use on the GTS but i'd like it to be Eisenmann.
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      07-29-2010, 10:14 AM   #11
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As quoted from Edmund's Inside Line, 7/14/2010

"Much of the acoustic insulation has been chucked into the dumpster and the titanium, low-backpressure Boysen exhaust is extra resonant, so we hear so much more of the
V8's voice as it seeks the 8,300-rpm redline."
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      07-29-2010, 02:08 PM   #12
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????

Redline is at 8.400 rpm!

Last edited by BMW269; 07-31-2010 at 09:03 AM..
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      07-31-2010, 08:50 AM   #13
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any word on who makes it?
would it void warranty???
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      07-31-2010, 12:30 PM   #14
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It is Boysen!
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      07-31-2010, 12:53 PM   #15
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Quote:
Dear M3 owners!
If you didn't have the chance to get 1 of the 150 M3 GTS we built, we can give you the recipe the to transforme your own M3 into an M3 GTS.
Stripp it out and add
-Brakes: Brembo 380/32/6 & 380/28/4
-Coilvers: KW V3 Clubsport
-Exhaust: Boysen
-Seats: Recaro Pole Position
-Hans System: Schroth
-Rear Wing: 320si WTCC by BMW Motorpsort
Unfortunately you will not be able to get the M3 GTS exclusive color, Inca Orange.

BMW M GmbH

Last edited by BMW269; 07-31-2010 at 01:17 PM..
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      05-18-2019, 02:43 PM   #16
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Boysen, see for yourself:

https://www.m3post.com/forums/showthread.php?t=1112284

Quote:
Originally Posted by BMW269 View Post
????

Redline is at 8.400 rpm!
The GTS is a 4.4 stroker S65, so rev limit probably reduced slightly to account for the longer stroke.

It's peak power is claimed at 8300, perhaps that is the limiter?
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