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JCR // 991 GT3/RS EXHAUST (REFERENCE THREAD)

Old 04-20-2019, 09:10 AM
  #46  
flsupraguy
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Originally Posted by localmotion411
Does this mean that the transition from open to closed valves at 4k rpm is worse than stock? Trying to get away from that transition but would like to have my wife ride in the car without stink eyeing me.
I think carnewal makes an adapter so you can leave valves fully closed or open at all times?
Old 04-25-2019, 09:24 AM
  #47  
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if i want to replace the OEM v-band clamps with better ones, does anyone know the size i should get or which ones to get ? thanks!
(991 GT3)
Old 05-08-2019, 12:30 AM
  #48  
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Originally Posted by DrKid
This is the spreadsheet I made -
Just installed the valved side silencer over the last two nights after work - I need to improve my wrenching skills but mere mortals can pull off the install -

E


Thanks for the chart. Now I have no clue on what to get. lol
Old 05-08-2019, 04:23 PM
  #49  
FourT6and2
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I'm waiting for some sort of comparison video between the regular center bypass and the superlight version. Basically balance tube vs x-pipe.
Old 05-08-2019, 06:50 PM
  #50  
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Originally Posted by FourT6and2
I'm waiting for some sort of comparison video between the regular center bypass and the superlight version. Basically balance tube vs x-pipe.

From the little bit of videos that are out there it sounds like the Superlight is the higher pitched one of the two. It's the one that I'm eyeing as I want the Race Pipe's RSR-ish sound, but save a few $ to put towards track days/tires/etc.
Old 05-08-2019, 07:22 PM
  #51  
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Originally Posted by Jickel180
From the little bit of videos that are out there it sounds like the Superlight is the higher pitched one of the two. It's the one that I'm eyeing as I want the Race Pipe's RSR-ish sound, but save a few $ to put towards track days/tires/etc.
Hard to say. I don't think I've seen a video of the superlight yet.
Old 05-08-2019, 07:25 PM
  #52  
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Originally Posted by FourT6and2
Hard to say. I don't think I've seen a video of the superlight yet.

This should help

https://rennlist.com/forums/991-gt3-...l#post15779641
Old 05-08-2019, 10:52 PM
  #53  
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Originally Posted by Jickel180
Oh, thanks!

Ok so white car = superlight, red car = silenced bypass.

View this post on Instagram
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Old 05-28-2019, 07:14 AM
  #54  
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We installed one of our Titanium Silenced Centre Bypass together with a set of our Titanium Superlight Tips to Youtuber Archie Hamilton's 991.1 GT3 RS

A great opportunity to show and talk in a little more detail on a small selection of our current offerings, hope you enjoy!


JC
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Old 05-28-2019, 07:40 AM
  #55  
Taffy66
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I've just taken off your JCR Ti center bypass and tips from my 991.2GT3 as i'm selling it..I'm expecting delivery of my new 991.2GT3 RS WP in September/October here in the UK..Since its the new post WLTP version with ITBs and fitted with the new SS lightweight exhaust incorporating GPFs, will it be possible to fit my existing JCR bypass to this RS..
While removing the OEM center muffler from my GT3 we managed to snap several of the flange bolts..Since they are sandwiched within the sealed box it caused problems when i came to refit it..Any tips on how to avoid this happening again would be appreciated..
Old 05-28-2019, 09:31 AM
  #56  
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Originally Posted by Taffy66
I've just taken off your JCR Ti center bypass and tips from my 991.2GT3 as i'm selling it..I'm expecting delivery of my new 991.2GT3 RS WP in September/October here in the UK..Since its the new post WLTP version with ITBs and fitted with the new SS lightweight exhaust incorporating GPFs, will it be possible to fit my existing JCR bypass to this RS..
While removing the OEM center muffler from my GT3 we managed to snap several of the flange bolts..Since they are sandwiched within the sealed box it caused problems when i came to refit it..Any tips on how to avoid this happening again would be appreciated..
No the exhaust is really quite different. We have a very early car coming into us for development so we will have some great solutions available but its really quite different to the current exhaust system.

For the flange bolts, only really a good soak with penetrating fluid and being super gentle. They're a bit of a pain, the design really isn't great in that regard.

JC
Old 06-12-2019, 05:23 AM
  #57  
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Thread updated with further info and new images.

JC
Old 06-12-2019, 07:14 AM
  #58  
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Waiting to hear the Titanium Valves Race Pipes setup closed vs open as well as the dyno graph before and after.
Old 08-20-2019, 10:35 AM
  #59  
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Latest product updates added

JC
Old 08-20-2019, 01:06 PM
  #60  
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A great video from one of our customers describing and demonstrating the differences between our Titanium Superlight Centre Bypass and our infamous Titanium Race Pipe

Enjoy!


JC

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