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991 GT3 GT3RS and 911R
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JCR // Titanium Valved Race Pipe (New Product & Intro Offer!)

 
Old 02-21-2019, 11:45 PM
  #16  
krell
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Originally Posted by Nizer View Post
Couple of questions:

- does this system retain stock cats?
- where are the valves? don't see them in photos.
- any photos of full system? would like to see the rest of the plumbing.
- how would this system differ from using valved side muffler delete and silenced center section?

Thanks
This is post cat so yes.
Valves are on the outboard side of the car. In the video you can see the linkage move.
JCR typically posts pictures on their site.
JCR is better equipped to answer.

Originally Posted by RADONCulous View Post
Any drone or CEL? Thanks very interested!
No CEL.

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Old 02-22-2019, 10:10 AM
  #17  
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NICE!!!
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Old 02-22-2019, 06:47 PM
  #18  
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CANNOT WAIT!

Inconel headers and this valved system are going to be an epic setup.
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Old 02-23-2019, 02:53 AM
  #19  
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When is the second thread coming with results from all the non-header parts? Hoping these are included with video capturing the valve transition. Any chance it's before the intro buy period? Want to make the most informed decision possible without the luxury of experiencing firsthand.
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Old 02-23-2019, 09:42 AM
  #20  
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Beautiful system. Can you kindly provide the weight delta between your system and Porsche's stock system?

Last edited by odwa; 02-23-2019 at 10:05 AM.
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Old 02-24-2019, 07:15 PM
  #21  
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Originally Posted by Nizer View Post
- how would this system differ from using valved side muffler delete and silenced center section?

Thanks
Originally Posted by sunnyr View Post
Curious how this compares with your center silenced bypass + valved side bypass?
Looks like we're both still waiting on an answer to the same question....
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Old 02-24-2019, 07:40 PM
  #22  
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Originally Posted by odwa View Post
Beautiful system. Can you kindly provide the weight delta between your system and Porsche's stock system?
Hey Bud! I think the info you seek is in this thread....

https://rennlist.com/forums/991-gt3-...x-headers.html
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Old 02-25-2019, 08:29 AM
  #23  
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Thanks Phil!
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Old 02-25-2019, 09:50 AM
  #24  
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Hey all,

Apologies for the delay in getting back to you on responses in this thread, its been bit of a crazy week!

Originally Posted by speed doc View Post
Wow beautiful work!! Please educate me on weather this will throw any engine codes and are the cats intact??

I love it!!!

Congrats again
As a couple have since mentioned, the Valved Race Pipe fixes to the factory headers (and any header which is a direct replacement for OEM) so if you run with OEM headers there is no requirement to re tune and no change in emissions meaning no chance of CEL

Originally Posted by A/S View Post
JC

1) Do you have any sound measurements between this new system at the multiple RPM ranges vs. the Silenced non-valved Race Pipes? The silencers look very similar between both systems, so I wonder if the valves closed are producing similar sound levels to my JCR Silenced Race Pipes (I don't want my system any louder to what it is).

2) Also with the valves open, is the sound level identical to the Non-Silenced/Non-Valved Race Pipes (the original race pipes)?

Thanks
1) We're working on pulling together this specific info, I hope to share very soon and will add all additional information to the JCR EXHAUST REFERENCE THREAD

2) When valves are open the sound is audibly exactly the same as the non silenced race pipe, we even went to the trouble of running 76mm I/D valves with a bellow before / after the valve body to ensure the flow wasn't disturbed by the butterfly valve as to not affect flow rates and disturb the sound in any way vs original race pipe.

Originally Posted by hashash View Post
wow , looks incredible !
does it come with the tips ?
The Valved Race Pipe is not supplied with our Titanium Tips however you can install OEM tips and/or upgrade to our Titanium tips. Install is as per OEM to retain the modular approach that each of our exhaust offerings follow.

Originally Posted by TT Chris View Post
JC,

Shouldn't valves closed sound as loud and just like your silenced race pipe? It sounds quieter than stock in the video.

Can you please add this one to the comparison list you made from before so we can get an idea of the volume please .. Example of your comparison attached..

Thank you!
Please see below, again this is a subjective feeling based on all of our other exhausts
  • JCR Titanium Valved Race Pipe (Valves Closed - 4.5 // Valves Open - 9)
The Silencer size in the Valved Race Pipe is larger overall than the Silenced Centre Bypass with the same internal diameter so the silencing is significant vs valves open.

Originally Posted by BlazinPond View Post
Gulp.....MUST HAVE.
Glad I haven't installed my other JCR exhaust as I might NEED to exchange
Get in touch via PM, maybe we can figure a solution for you

Originally Posted by DR08 View Post
I've got the same request regarding the comparison list. Thanks!
Sorry for the delay, please see above

Originally Posted by Nizer View Post
Couple of questions:

- does this system retain stock cats?
- where are the valves? don't see them in photos.
- any photos of full system? would like to see the rest of the plumbing.
- how would this system differ from using valved side muffler delete and silenced center section?

Thanks
1) Yes stock cats, the system fixes to the factory / factory style headers

2) Please see image below, hopefully this shows them a little more clearly than the images previously posted




3) Hopefully the above picture also helps with this request

4) Our Valved Side Silencer Bypass and Silenced Centre Bypass are modular parts, with the Valved Race Pipe we have more freedom in the design and so we have been able to include larger silencers in the valves closed position and also run our extended larger diameter pipe work and incorporate the Race Pipe merge pre tips. All this means that in comparison the Valved Race Pipe is quieter with valves closed and louder with valves open.

Originally Posted by horns View Post
How is the natural transition from valves closed to open? I would think the step in volume would be more noticeable than the stock setup. Can you comment on this?
The transition is smooth, its not a big sudden step and its not annoying (in my opinion) Due to the design and routing of the silencer intake and valve position the sound naturally builds prior to the valves opening

Originally Posted by RADONCulous View Post
Any drone or CEL? Thanks very interested!
No drone and no chance of CEL when running this exhaust together with the OEM headers

Originally Posted by sunnyr View Post
Curious how this compares with your center silenced bypass + valved side bypass?
Please see point 4) above (also repeated below as this is the same info requested)

"Our Valved Side Silencer Bypass and Silenced Centre Bypass are modular parts, with the Valved Race Pipe we have more freedom in the design and so we have been able to include larger silencers in the valves closed position and also run our extended larger diameter pipe work and incorporate the Race Pipe merge pre tips. All this means that in comparison the Valved Race Pipe is quieter with valves closed and louder with valves open."

Originally Posted by PhilT3 (PT3) View Post
NICE!!!
Can't wait for your feedback once installed!

Originally Posted by ad2330 View Post
CANNOT WAIT!

Inconel headers and this valved system are going to be an epic setup.
Pic above, its a killer set up!

Originally Posted by horns View Post
When is the second thread coming with results from all the non-header parts? Hoping these are included with video capturing the valve transition. Any chance it's before the intro buy period? Want to make the most informed decision possible without the luxury of experiencing firsthand.
Very soon, sorry for the delay on this. A HUGE amount of data to be processed and between all of the current work load its taking a little longer than first hoped to release, i've not forgotten though and will do my best to get it out there and presented on the forum ASAP

Originally Posted by odwa View Post
Beautiful system. Can you kindly provide the weight delta between your system and Porsche's stock system?
Thanks for the compliments! The weight loss vs OEM Side Silencers and OEM Centre Silencer is -18.5kg (-40.79lbs)

Thanks again for all the questions, please do feel free to ask more!

I will be sharing more video of the exhaust tomorrow

JC
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Old 02-25-2019, 12:41 PM
  #25  
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When does the intro pricing expire?
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Old 02-25-2019, 01:05 PM
  #26  
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Originally Posted by DR08 View Post
When does the intro pricing expire?
We're running intro offer until 1st March

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Old 02-25-2019, 04:25 PM
  #27  
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More in depth video with various interior & exterior shots


Enjoy!

JC
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Last edited by JCR-Porsche; 02-25-2019 at 05:40 PM.
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Old 02-25-2019, 04:42 PM
  #28  
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JCR where are the videos ?
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Old 02-25-2019, 05:41 PM
  #29  
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Originally Posted by hashash View Post
JCR where are the videos ?
Link fixed now so should be live above!

JC
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Old 02-25-2019, 05:58 PM
  #30  
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Very nice!
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