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neil_911
Monza


Joined: 04 Dec 2016
Posts: 150
Location: Doncaster


PostPosted: Wed Jul 11, 2018 3:25 pm    Post subject: New 997.2 C2S Exhaust content; Vid's and pics. Reply with quote

Afternoon all,

Been a little quiet on here recently, enjoying the summer sun in the 911.

Had a custom exhaust put on the 911 recently, As part of a company using my car as a development model to produce later systems with a few different options regarding silencing etc.

I went for the 2x silencer system and i bloody love it - Take a listen and tell me what you think! - The mic was spiking the pops and bang were that loud, so thats the only thing its not really captured.

https://www.youtube.com/watch?v=xKBXsrxQNvk
_________________
Basalt Black 997.2 C2S PDK - for the weekends
Mercedes S500 5.0L V8 - for the commute
 



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neil_911
Monza


Joined: 04 Dec 2016
Posts: 150
Location: Doncaster


PostPosted: Wed Jul 11, 2018 3:26 pm    Post subject: Reply with quote

And another...
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Basalt Black 997.2 C2S PDK - for the weekends
Mercedes S500 5.0L V8 - for the commute
 



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HSC911
Zolder


Joined: 23 Jul 2014
Posts: 5174
Location: Bedford


PostPosted: Wed Jul 11, 2018 3:39 pm    Post subject: Reply with quote

Looks Cool

and sounds worship

Thumb
 
  
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James M-S
Montreal


Joined: 11 Apr 2017
Posts: 619
Location: Derby

2009 Porsche 997 Carrera 2

PostPosted: Wed Jul 11, 2018 6:53 pm    Post subject: Reply with quote

Loving that!
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Manual 997.2 c2 :Basalt + gtechniq : H&S + Gundo
 
  
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neil_911
Monza


Joined: 04 Dec 2016
Posts: 150
Location: Doncaster


PostPosted: Thu Jul 12, 2018 7:52 pm    Post subject: Reply with quote

Cheers lads!

I've had a few messages about where i had it done, I had forgot to post the link up. So see below.


https://www.cgrautomotive.co.uk/product-page/porsche-carrera-911-exhaust-system


There's a write up on his blog as well which i missed.

https://www.cgrautomotive.co.uk/single-post/Porsche-911-Exhaust
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Basalt Black 997.2 C2S PDK - for the weekends
Mercedes S500 5.0L V8 - for the commute
 
  
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Phil 997
Brands Hatch
Brands Hatch


Joined: 05 Dec 2015
Posts: 14071
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Thu Jul 12, 2018 11:01 pm    Post subject: Reply with quote

Neil, thats sounds great no raspiness , Its very similar sound to my Cargaphic set up which considering you are still running the stock cats and headers is very impressive. just imagine the gates of hell if you went 200cell cats as well Grin Grin the other very appealing thing is the fact its less than half the cost of the cargraphic valved set up I have. and aesthetically it looks like a piece of art. I would love to hear the single box option as well when they sell one Thumb
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911 Owners,Some Invest In The Future,
Others Enjoy The Moment Today.
 
  
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neil_911
Monza


Joined: 04 Dec 2016
Posts: 150
Location: Doncaster


PostPosted: Fri Jul 13, 2018 10:54 am    Post subject: Reply with quote

Phil 997 wrote:
Neil, thats sounds great no raspiness , Its very similar sound to my Cargaphic set up which considering you are still running the stock cats and headers is very impressive. just imagine the gates of hell if you went 200cell cats as well Grin Grin the other very appealing thing is the fact its less than half the cost of the cargraphic valved set up I have. and aesthetically it looks like a piece of art. I would love to hear the single box option as well when they sell one Thumb


Yeah i'm chuffed with how the sounds come out, It's always a risk with aftermarket exhausts. I guess the advantage of CGR's design is in house manufactured silencers, So choosing the amount of sound deadening installed internally.

As you know Gen 2's coke up, so it's mellowed slightly with use. Which i think has improved the sound. The noise it makes when it shifts up with sports plus on is mega.

I think if i wasn't asking for my car back for summer, CGR could have developed a valved system, But its hard with the limited space between the bumper and crash bars - plus they're very much about not compromising performance and or gas flow through poorly laid out valves/piping.

You're right though, Value compared to akrapovic is incomparable when you're looking at build quality. It's all the time taken to back purge the system so the welds on the inside, look as good as the outside and don't impede gas flow
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Basalt Black 997.2 C2S PDK - for the weekends
Mercedes S500 5.0L V8 - for the commute
 
  
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Counter Of Beans
Trainee


Joined: 10 May 2018
Posts: 93
Location: Hampshire


PostPosted: Mon Jul 16, 2018 8:38 pm    Post subject: Reply with quote

As others have said, looks great with sound to match.
I understand you've got the 2 silencer option, so what's your opinion of its sound on start up? I ask because I really don't want to annoy our neighbours - shared drive and all that. I'm wondering whether a valved system might be better for that reason.
Secondly, is it reasonably sensible when (say) pootling down to Tesco? I would feel embarrassed if the exhaust was LOUD at low speeds.
Finally, any drone at motorway speeds? This is my one real pet hate with aftermarket exhausts!

Also, great posts and thanks for sharing.
Mike.
 
  
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neil_911
Monza


Joined: 04 Dec 2016
Posts: 150
Location: Doncaster


PostPosted: Mon Jul 23, 2018 11:14 am    Post subject: Reply with quote

Counter Of Beans wrote:
As others have said, looks great with sound to match.
I understand you've got the 2 silencer option, so what's your opinion of its sound on start up? I ask because I really don't want to annoy our neighbours - shared drive and all that. I'm wondering whether a valved system might be better for that reason.
Secondly, is it reasonably sensible when (say) pootling down to Tesco? I would feel embarrassed if the exhaust was LOUD at low speeds.
Finally, any drone at motorway speeds? This is my one real pet hate with aftermarket exhausts!

Also, great posts and thanks for sharing.
Mike.


Replied to your PM Mike,

As i mentioned privately, it's loud on cold idle backing it out the garage - but soon settles down to a low tone burble when the cat heat cycle is finished. I too have neighbours either side of me and i've been inside my house while its running and you can't really hear it. Just me being paranoid i think.

Pootle speeds its not much louder than the tyre noise and general cabin sounds. Doesn't bang or generate too much noise at all when in D. I can park up at sainsbury's and its probably not much louder than a V10 R8. Just that subtle deep rumble from a sports car. It's quietened down ALOT with use, as the internals have coked up.

My two silencer option does begin to open up when traveling at 80mph and above. It's not so much a drone, Just louder, I think the cam timing must change around that sort of RPM as the engine note does noticeably change. I think if you're doing motorway miles, the 4 silencer option may be more desirable, Or speak to charlie about increasing the size of the two silencers allowing more sound deadening inside each silencer.

I too have had many aftermarket exhausts in the past, from miltek/cobra etc. Its a hard balance between having a loud exhaust when you want it and a quiet one when driving normally. The advantage of charlies system over an akrapovic is the silencing really is up to you with a multitude of options. If you're not happy with a particular silencing option (i.e 2). It's not a great deal of work to swap it over to 4. I was tempted, but i simply can't get rid of the addictive GT3 cup car sound.
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