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exhaust / bypass - which one to choose?

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Old 03-27-2015, 05:32 PM
  #61  
aznkuja328
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Originally Posted by Jimmy-D
So you are getting their Bypass Pipe Set?? If so, I am very interested in how you like it. Please post sound bites an pictures.
yes and will do review, photos, and video.
Old 03-27-2015, 05:39 PM
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Here are a two options we have for the 991 GT3 Center sections:


RSR style with Oval Tip :

IMG_8518_GMG by GMG Racing, on Flickr

IMG_8521_GMG by GMG Racing, on Flickr

IMG_0238 by GMG Racing, on Flickr

WCGT with dual round 4" tips


IMG_5344_GMG by GMG Racing, on Flickr

Finished in thermal coat black.




_MG_8552_GMG by GMG Racing, on Flickr




More info on our 991 GT3 specific parts can be found here:


https://www.gmgracing.com/store/inde...rsche/gt3.html




IMG_1909 by GMG Racing, on Flickr



You can also check out our GMG Track Spec 991 GT3 at this link:

https://www.flickr.com/photos/gmgrac...7651197927411/



If you have any additional questions please do not hesitate to email us directly.



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Old 03-27-2015, 06:54 PM
  #63  
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Originally Posted by Scott997
I had the shark werks center muffler bypass on my 997.2 and LOVED it. Naturally I went with the same choice on my 991. I also have my valve bypassed.
Sounds Excellent at WOT and docile at cruise. Highly recommended.
how you bypassed you vale with Sharkwerk ?
the car not loud on highway cruise with the valve open?

if i get it right
Cargraphic claim 20 HP increase only when the Valve open and under 4000rpm?
Old 03-28-2015, 07:27 AM
  #64  
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Originally Posted by gmgracing
Here are a two options we have for the 991 GT3 Center sections:


RSR style with Oval Tip :

IMG_8518_GMG by GMG Racing, on Flickr

IMG_8521_GMG by GMG Racing, on Flickr

IMG_0238 by GMG Racing, on Flickr

WCGT with dual round 4" tips


IMG_5344_GMG by GMG Racing, on Flickr

Finished in thermal coat black.




_MG_8552_GMG by GMG Racing, on Flickr




More info on our 991 GT3 specific parts can be found here:


https://www.gmgracing.com/store/inde...rsche/gt3.html




IMG_1909 by GMG Racing, on Flickr



You can also check out our GMG Track Spec 991 GT3 at this link:

https://www.flickr.com/photos/gmgrac...7651197927411/



If you have any additional questions please do not hesitate to email us directly.



Best,


Fabryce@GMG
Hi GMG, can you post a video of your exhaust sound. tq
Old 03-28-2015, 05:58 PM
  #65  
James-GMG
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I know KYROCKS just posted a thread after installing our GMG Center Section and will be posting a sound clip / video soon and we will also have a full video and film crew out at Thermal this coming Friday for our 991 GT3 GMG track day which will also create many different sound clips. And since we will be on track, you will get full throttle upshifts through the entire rev range.....

If any of you are considering a Center Section / Muffler ByPass System, dare I ask if you could wait until we get this video with sound clips out on the RL Forum?
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Old 03-28-2015, 06:10 PM
  #66  
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Old 03-29-2015, 07:19 AM
  #67  
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When do you think you can share a few sick videos with us?

Originally Posted by James-GMG
I know KYROCKS just posted a thread after installing our GMG Center Section and will be posting a sound clip / video soon and we will also have a full video and film crew out at Thermal this coming Friday for our 991 GT3 GMG track day which will also create many different sound clips. And since we will be on track, you will get full throttle upshifts through the entire rev range.....

If any of you are considering a Center Section / Muffler ByPass System, dare I ask if you could wait until we get this video with sound clips out on the RL Forum?
Old 03-29-2015, 03:08 PM
  #68  
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Nice vid I took that video a few weeks ago of my car right after I put the GMG bypass on. I will have some vids of two 991GT3's at the track with the GMG bypasses next weekend.
Old 03-29-2015, 03:53 PM
  #69  
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I'll say that I am surprised that all center bypasses look to be similar diameter pipe (we know they must be the same at the connection point to factory) but are tuned very different in sound.....it must be slightly different lengths of tubing that is creating this difference in sound. It's nice that they all have a unique sound to them.

GMG looks to get larger in diameter just after connection to side pipes....
Old 04-02-2015, 12:38 PM
  #70  
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CarGraphic reply:

Dear Meir,

thank you for your e-mail inquiry and your interest in Cargraphic products.

The flaps of our bypass pipe set will open and close like original and also the function of the factory sport button kept fully remained.

The factory flaps have only a diameter of 60mm and our 74mm exhaust flaps were especially produced for maximum power and the big diameter allows us to integrate them in our exhaust system without the need of any pipe reducer.


the Sport Button also open the Flaps? i'm confuse
Old 04-03-2015, 12:45 PM
  #71  
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Originally Posted by MoeGt3
When do you think you can share a few sick videos with us?
We are taking a trip to Thermal Club this weekend and will have some nice vids to come!

Originally Posted by ToyGuyAZ
Nice vid I took that video a few weeks ago of my car right after I put the GMG bypass on. I will have some vids of two 991GT3's at the track with the GMG bypasses next weekend.
Indeed, very nice car and sound! Excited to see/hear the video!

Originally Posted by sccchiii
I'll say that I am surprised that all center bypasses look to be similar diameter pipe (we know they must be the same at the connection point to factory) but are tuned very different in sound.....it must be slightly different lengths of tubing that is creating this difference in sound. It's nice that they all have a unique sound to them.

GMG looks to get larger in diameter just after connection to side pipes....
Size/length and material all affect the resonance frequency of an exhaust system. Our proprietary design along with the materials used create the unique sound that only our system can provide.
Old 04-03-2015, 01:47 PM
  #72  
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I went with the GMG in ceramic black coating with the dual tips, it looks and sounds KILLER!

Old 04-03-2015, 03:01 PM
  #73  
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Originally Posted by pelo911
CarGraphic reply:

Dear Meir,

thank you for your e-mail inquiry and your interest in Cargraphic products.

The flaps of our bypass pipe set will open and close like original and also the function of the factory sport button kept fully remained.

The factory flaps have only a diameter of 60mm and our 74mm exhaust flaps were especially produced for maximum power and the big diameter allows us to integrate them in our exhaust system without the need of any pipe reducer.


the Sport Button also open the Flaps? i'm confuse
Nice. I definitely want to see the Cargraphic. It sounds like what I'm looking for.
Old 04-03-2015, 03:26 PM
  #74  
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I'd love to get more information regarding the BBI midpipe if anyone has them!
Old 04-03-2015, 08:03 PM
  #75  
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This sounds sexy!! These guys at GMG seem to have done a really nice job with the exhaust..I am just waiting on a better video from the guys with a GMG and I am all set to order one myself..Would be great if others are also in for a group buy..I saw 1 or 2 other people in the thread that are also interested in a group by too.

Originally Posted by Strimdog
I went with the GMG in ceramic black coating with the dual tips, it looks and sounds KILLER!



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