991 PSE + aftermarket exhaust system
#16
Rennlist Member
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PSE and aftermarket exhaust is actually the way to go.
-When PSE is off/closed, the exhaust goes through the side mufflers and the rear muffler.
-When PSE is open/on it bypasses both side mufflers and primarily only goes through the rear muffler.
By replacing the rear muffler with an aftermarket one you get the best of both worlds. Since it deletes the rear muffler, if you have PSE you can drive the car almost oem quiet with everything closed (when the wife is in the car and just wants a quiet drive) due to the oem side mufflers still being used, or you can hit the PSE button and the car instantly becomes a menace on the tarmac. The PSE & Aftermarket combo will bypass the oem side muffler and dump the exhaust straight out after the headers/cat. It just gives you the option to choose loud or quiet. Non-PSE and aftermarket exhaust is louder all the time.
-When PSE is off/closed, the exhaust goes through the side mufflers and the rear muffler.
-When PSE is open/on it bypasses both side mufflers and primarily only goes through the rear muffler.
By replacing the rear muffler with an aftermarket one you get the best of both worlds. Since it deletes the rear muffler, if you have PSE you can drive the car almost oem quiet with everything closed (when the wife is in the car and just wants a quiet drive) due to the oem side mufflers still being used, or you can hit the PSE button and the car instantly becomes a menace on the tarmac. The PSE & Aftermarket combo will bypass the oem side muffler and dump the exhaust straight out after the headers/cat. It just gives you the option to choose loud or quiet. Non-PSE and aftermarket exhaust is louder all the time.
I am picking up a CPO 991.2 Carrera 4s cabriolet w PSE today.
I also have a 991.1 Turbo S cabriolet with 3" x-pipe and 100 cel cats that sounds amazing.
If I want aftermarket for the new one, anything after the cats won't void the CPO warranty, so your option is great if the stock PSE is not loud enough.
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Meraki Autoworks (10-17-2023)
#17
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Good advice.
I am picking up a CPO 991.2 Carrera 4s cabriolet w PSE today.
I also have a 991.1 Turbo S cabriolet with 3" x-pipe and 100 cel cats that sounds amazing.
If I want aftermarket for the new one, anything after the cats won't void the CPO warranty, so your option is great if the stock PSE is not loud enough.
I am picking up a CPO 991.2 Carrera 4s cabriolet w PSE today.
I also have a 991.1 Turbo S cabriolet with 3" x-pipe and 100 cel cats that sounds amazing.
If I want aftermarket for the new one, anything after the cats won't void the CPO warranty, so your option is great if the stock PSE is not loud enough.
-Josh
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Your #1 Dealer for Aftermarket Performance Products
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![](https://www.clublexus.com/forums/signaturepics/sigpic167102_16.gif)
Your #1 Dealer for Aftermarket Performance Products
BC Forged / Soul Performance / Akrapovic / Bilstein / HRE / AL13 / CSF + more
Orange County, CA
Email: info@merakiautoworks.com
Text/Call: 213 394 2886
Website: www.MerakiAutoworks.com
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Alessandro1965 (10-23-2023)
#19
Rennlist Member
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I am selling a nice used catback and exhaust tips for 991.1's with OE valved exhaust
https://rennlist.com/forums/market/1364799
https://rennlist.com/forums/market/1364797
https://rennlist.com/forums/market/1364799
https://rennlist.com/forums/market/1364797
#20
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I am selling a nice used catback and exhaust tips for 991.1's with OE valved exhaust
https://rennlist.com/forums/market/1364799
https://rennlist.com/forums/market/1364797
https://rennlist.com/forums/market/1364799
https://rennlist.com/forums/market/1364797
#21
Burning Brakes
#22
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Anyone experience with this system or shop https://www.evox-performance.com/en/...e-991-mki.html
#23
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Did contact them, but very poor communication so I will pass them.
Looking into the iPE Catback F1 exhaust without the headers, lot more money…. Downside is also you see only youtube material with the headers done so what is expectation with standard headers ?
Looking into the iPE Catback F1 exhaust without the headers, lot more money…. Downside is also you see only youtube material with the headers done so what is expectation with standard headers ?