parkert

Looking at an aftermarket exhaust for the 992 GT3, has anyone tried these or heard them?

https://capristoexhaust.com/product/...t-carbon-tips/
-- Valves would be controlled by the ECU, then can get a remote to override and have valves open all the time or revert back to stock ECU settings.

https://www.sharkwerks.com/exhaust/p...-gt3rs-shax992
--This one is kinda neat, disconnects the valves and has a plug to think they are still present. No Valves, No Muffler, however has a tube to help cancel the drone out.

DodoBrd

What's your goal with exhaust? Power, sound, weight savings, etc.?

The most bang for your buck (for sound) seems to be to take out the unmonitored OPF material and install a valve delete module. Leaving the OPF and putting a catback exhaust will only give you marginally better / louder sound. I personally really only care about sound (weight savings is a plus), so I am doing an OPF delete + JCR's non-valved/non-silenced titanium exhaust, should sound wicked once it gets delivered

IMO, the stock exhaust makes the car sound like a vacuum

parkert

I am only looking for sounds, not worried about weight or hp gain.

I was told by exhaust groups the USA does not have the OPF on them, just a cat.

DodoBrd

Well, that's just wrong. Whether it is real or dummy OPF material, there is a honeycomb looking structure immediately after the cats which really dampens the sound. Search youtube for gt3 opf delete... both Adam LZ and Joeknowsbest did it.

supershaft

I have the IPE I'm pretty happy with the sound and minimal drone

Meraki Autoworks

Our best selling brands are Soul Performance and Akrapovic. Have you looked into those?

-Josh

X-PH.COM - MIKE

I would recommend Capristo, although I must admit my bias as a Capristo vendor.

Dr. G

I have the Soul full valved system - headers, sport cats and exhaust. Sounds phenomenal.

PTS

The USA cars definitely have the OPF filters and they absolutely dull the sound. I removed the OPFs and installed the Cargraphic exhaust valve module and it is night and day different. Sounds incredible but still OEM+. I wanted my car louder than stock but not with an aftermarket tone. Nothing against aftermarket exhausts, just not what I wanted for this car.

With the OPF delete + exhaust valve module combo, the howl in the midrange between 4-5k rpm is back, and sounds like the glorious midrange of the 991 cars.

parkert

How did you remove the OPF? Hammer / Chisel? Or was there an aftermarket pipe for this?

PTS

The shop I used for the process removed the header/cat, which exposes the OPF material and very carefully chiseled the material out to the point where the remaining of the OPF comes out. They then vacuumed out the debris then cleaned out the area, then re-attached the header/cat. It's a simple process. Just take your time and proceed carefully.

Aftermarket headers will remove the OPF as well, if you choose to go that route.

parkert

My assumption since GPF isn't monitored in the US. You didn't have any engine light issues?

PTS

Correct. No CELs or any issues whatsoever.

Wormiez

Are OPF filters only on North American and European cars?

Intrigued if Asia requires this and whether or not they have the OPF filters installed.

Amalfi

I am looking at Cargraphic as an option for my 992 GT3. I don't know anyone who currently has one installed, but Cargraphic produces quality stuff.
https://cargraphic.de/en/your-vehicl...t3-gt3-rs-40l/