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Aftermarket exhaust options w/o tunes

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Old 02-23-2024, 01:51 PM
  #31  
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Originally Posted by MeissenBlue992
I feel like i read somewhere that the stock limited valve opening from 1k-4k had something to do with the need to generate pressure for better turbo spool. So is it purely for sound control or is there a performance benefit to stock valves? Honestly, unless is a major factor...I'm opening those valves as soon as i get my car (this summer). These cars sound so good already...pretty sure more is always better 😂. Thanks for all the input and advice for us newbies!
From our testing, it didn't have an effect on power. There's quite a bit of backpressure with the stock catalyst helping the turbo spool quickly.
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Old 02-23-2024, 02:03 PM
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Originally Posted by Flat6Motorsports
From our testing, it didn't have an effect on power. There's quite a bit of backpressure with the stock catalyst helping the turbo spool quickly.
Any upcoming specials on the Cargraphic valve controllers?
Old 02-23-2024, 02:31 PM
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Originally Posted by Flat6Motorsports
From our testing, it didn't have an effect on power. There's quite a bit of backpressure with the stock catalyst helping the turbo spool quickly.
If i understand your assertion correctly, i disagree with it.
A turbocharger will almost always perform better with less restriction downstream of it. Seems this is a commonly held myth.
My two cents.
Old 02-23-2024, 02:33 PM
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Originally Posted by brandobot
I took the plunge and ordered the Akrapovic exhaust. Now I’m debating whether I need the cargraphic valve controller too.

anyone have opinions on whether the Akra would benefit from the valve controller or was it perfect as is?

This sound clip is with an aftermarket exhaust (iPE) and you can hear the big difference for yourself. The same would hold true for any center, just a little difference in tone I would think.


Last edited by Vicbastige; 02-23-2024 at 02:36 PM.
Old 02-23-2024, 04:59 PM
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I have the Cargraphic and it does a good job. Truthfully you won't notice it at highway speeds as it makes the most difference in traffic.

I contemplated an iPE or JCR or other exhaust, but I am still considering swapping on an OEM Aerokit, and the cost of that, I don't want to do the exhaust too.
Old 02-23-2024, 05:07 PM
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Originally Posted by Vicbastige
This sound clip is with an aftermarket exhaust (iPE) and you can hear the big difference for yourself. The same would hold true for any center, just a little difference in tone I would think.

https://youtube.com/shorts/C_q2lsiPWh4
Here is a video I took some time ago playing around with valve closed/open on IPE SS.
Old 02-23-2024, 05:16 PM
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Originally Posted by 3rdpedal
I have the Cargraphic and it does a good job. Truthfully you won't notice it at highway speeds as it makes the most difference in traffic.

I contemplated an iPE or JCR or other exhaust, but I am still considering swapping on an OEM Aerokit, and the cost of that, I don't want to do the exhaust too.
Having done both the JCR and aerokit as my 2 fav mods, you're definitely making the right choice with the aerokit first, if the cost makes sense. Total game changer. And PSE with valves open is 80% of the enjoyment I have with JCR.
Old 02-23-2024, 05:23 PM
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Originally Posted by reddsektor
Having done both the JCR and aerokit as my 2 fav mods, you're definitely making the right choice with the aerokit first, if the cost makes sense. Total game changer. And PSE with valves open is 80% of the enjoyment I have with JCR.
I did the other way around...exhaust first, wing later. wing is mostly for looks from outside, exhaust you enjoy when sitting inside and driving more than a wing.
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Old 02-23-2024, 05:54 PM
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Originally Posted by Tobeit
I did the other way around...exhaust first, wing later. wing is mostly for looks from outside, exhaust you enjoy when sitting inside and driving more than a wing.
...and you video was what sold me on the iPE/Cargraphic. I'm glad it did
Old 02-23-2024, 06:35 PM
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Originally Posted by Tobeit
I did the other way around...exhaust first, wing later. wing is mostly for looks from outside, exhaust you enjoy when sitting inside and driving more than a wing.
If coming from fully stock exhaust maybe, but he already has PSE with valves open which already sounds glorious in its own right. I enjoy the wing even inside the car seeing it in the rear view mirror 😜
Old 02-24-2024, 06:54 AM
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an alternative is available if u dont want to tune your car while installing sport cats or straight pipe.

I bought the armytrix downpipe and their dongle/canceller. it has been working great
Old 02-24-2024, 07:53 AM
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Originally Posted by brandobot
I took the plunge and ordered the Akrapovic exhaust. Now I’m debating whether I need the cargraphic valve controller too.

anyone have opinions on whether the Akra would benefit from the valve controller or was it perfect as is?
I did not get it and I don’t think you need it. The Akra provides a more aggressive , raspier sound profile. I have a Cabriolet, so I hear it very well. Suggest you test it out first before adding more.
Old 02-24-2024, 08:21 AM
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Originally Posted by Purdey51
If i understand your assertion correctly, i disagree with it.
A turbocharger will almost always perform better with less restriction downstream of it. Seems this is a commonly held myth.
My two cents.
On the dyno, we see a small lower RPM dip in power when the exhaust is fully opened up. We haven't measured turbo manifold pressure or turbo RPM but just observed when they are fully open systems they produce a slightly smaller HP/TQ output at lower RPMs. The mid range and higher RPM gains make it worth it to us but just a general observation.
Old 03-07-2024, 02:14 PM
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Another great option for improved HP, turbo spool, and minimal drone is our new GT2RS style exits for the Carrera.
No tune is required, no CEL is guaranteed! It was one of our most popular setups on the Turbo, so we wanted to carry it over to all 992 owners.

Certainly worth a look

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