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991 GT2 RS OEM exhaust

 
  #1  
Old 04-15-2018, 11:25 AM
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991 GT2 RS OEM exhaust

Hi all,

Here are some pictures of the 991 GT2 RS OEM titanium exhaust.

Actually 2/3th (the cats) is made of stainless steel and 1/3th (the muffler) is made of titanium.

Secured with V-clamps and the Lambda sensor is located in the turbo housing. Weighs 13kg / 29 Lbs.

Build by MHG, the company that builds all the Cup and RSR exhausts.

Cheers, Stef
 
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  #2  
Old 04-18-2018, 08:31 AM
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Thanks for posting Stef! When's the EP GT2RS coming?
 
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Old 04-19-2018, 01:23 AM
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Been working on it for quite some time now Johnny, still a long way to go. Over here first cars arrived in January.

Look at the GT2 RS muffler bracket, weighs 0.12 kg less than the regular 991 Turbo bracket.
 
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Old 04-19-2018, 04:41 AM
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Since January? Wow that's a lot of work, but as always, I'm sure the quality will be 100%. Can't wait to see and hear the finished product.

Are the brackets different materials?
 
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Old 04-19-2018, 09:41 AM
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The bracket is made of regular 304 stainless. The headers are thick and heavy cast iron though.
 
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Old 08-25-2018, 03:07 AM
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Im so happy that best hand made exhaust manufacturer is developing muffler for GT2RS
 
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Old 08-31-2018, 02:08 AM
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Hi Stef

Any update on this? I’m interested in one for my 991 GT2 RS.

Do you have a target weight? What materials are you planning to use given the makeup of the OEM system?
 
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Old 09-01-2018, 02:44 AM
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Target weight is the same as stock at 13kg using high grade stainless steel. These stock cats and valves are rather heavy weight.
 
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Old 09-10-2018, 12:54 PM
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Originally Posted by [email protected] View Post
Target weight is the same as stock at 13kg using high grade stainless steel. These stock cats and valves are rather heavy weight.
Sounds good, will you redo the cats with 100's? Do you have an approx ETA for this?

Put me down for one
 
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Old 09-11-2018, 06:00 AM
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Originally Posted by GT3ZZZ View Post
Sounds good, will you redo the cats with 100's? Do you have an approx ETA for this?

Put me down for one
We'll use our new 50 cell cats. No CEL no smell and no need to modify the ECU.

Not sure about the ETA yet, still a long way to go.

​​​​​​​



​​​​​​​

​​​​​​​
 
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Old 09-11-2018, 08:24 AM
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Originally Posted by [email protected] View Post
We'll use our new 50 cell cats. No CEL no smell and no need to modify the ECU.

Not sure about the ETA yet, still a long way to go.

​​​​​​
Are the 50 cell cats UK MOT/emissions compliant?
 
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Old 09-12-2018, 07:04 AM
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Originally Posted by GT3ZZZ View Post
Are the 50 cell cats UK MOT/emissions compliant?
​​​​​​​Emission results are excellent so no problem passing the test.
 
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Old 09-12-2018, 10:43 AM
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Originally Posted by [email protected] View Post
Emission results are excellent so no problem passing the test.
That's great, thank you
 
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Old 12-09-2018, 09:05 AM
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Nice heat discoloration after testing one of our 991 GT2RS sport exhausts:


 
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