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997 Exhaust Sound and Setup

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Old 12-16-2023, 06:23 PM
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Wonderdan
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Default 997 Exhaust Sound and Setup

I figured enough people were asking in many different threads for sound examples and different configurations that I'd start a new one just posting (non-sponsored) exhaust sound and the configuration that goes along with it, it would be good to get all this in one place.

Dundon 997.2 (2.5 inch) V2 Long Tube Street Headers
991.2 (2019) Titanium Center w/Fabspeed GT3 OEM Center Muffler Reinforcement
991.2 Titanium Rolled Tips


15 seconds Sport Mode On
2000 RPM
4000 RPM
8000 RPM
and a few blips

Compared to my SS center I think this has a little bit of a tin sound, so I actually might like it a bit less but 20 lbs is 20 lbs. I prioritize weight over sound so I do not have the Dundon loud center. Someday I want the Dundon Ti center, but it’s $11k

Tip for iphone: users>settings>camera>record stereo sound off, this will set the mic on the front camera vs all around. Also in the same location you can set your recording to 1080p since we are listening to sound and don’t care about 4K, I would suggest this because Rennlist has a 20mb upload limit.

Clearly a drive by video is better than static but this is much easier for us to do.

Last edited by Wonderdan; 12-16-2023 at 06:59 PM.
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Old 12-17-2023, 12:56 PM
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SR20Fastback
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I’m going to have to bug you to hear this in person one of these days. Very similar to what I’d like to put on my car as well.
Old 12-17-2023, 02:25 PM
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JG 996T
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tried to follow your procedure. Nothing but sharkerks bypass v1

(full video was way too big)
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Old 12-17-2023, 05:05 PM
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Originally Posted by SR20Fastback
I’m going to have to bug you to hear this in person one of these days. Very similar to what I’d like to put on my car as well.
Definitely, overland overpass is a good place for testing
Old 12-17-2023, 05:57 PM
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SR20Fastback
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Originally Posted by Wonderdan
Definitely, overland overpass is a good place for testing
Hah, I'm fairly partial to that tunnel between orchard and cole myself.
Old 12-19-2023, 02:44 PM
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Originally Posted by Wonderdan

Compared to my SS center I think this has a little bit of a tin sound, so I actually might like it a bit less but 20 lbs is 20 lbs. I prioritize weight over sound so I do not have the Dundon loud center. Someday I want the Dundon Ti center, but it’s $11k
I would have guessed the stainless center only weighed about 18 lbs by itself. How much does the titanium part weigh? I have been struggling to meet autocross sound restrictions, so I bought a Dundon quiet muffler... I was shocked at both how not quiet it is, and how heavy it is! I almost couldn't install it by myself. It did move the needle on the sound meter, but I'm not sure the juice is worth the squeeze for hanging 40 ish lbs off the back of the car.
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Old 12-19-2023, 03:00 PM
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Originally Posted by Auto_Werks 3.6
I would have guessed the stainless center only weighed about 18 lbs by itself. How much does the titanium part weigh? I have been struggling to meet autocross sound restrictions, so I bought a Dundon quiet muffler... I was shocked at both how not quiet it is, and how heavy it is! I almost couldn't install it by myself. It did move the needle on the sound meter, but I'm not sure the juice is worth the squeeze for hanging 40 ish lbs off the back of the car.
something in my head says the actual savings was 17lbs... but truthfully I cant remember, but I do remember picking it up and remembering out light it was. When the valves are closed i find the muffler to be perect for my neighborhod... sometimes I want more but not when im in the canyons. I do notice it tone down a lot at elevation.

Last edited by Wonderdan; 12-19-2023 at 03:03 PM.
Old 12-19-2023, 04:56 PM
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If someone is looking for RSR sound, I still have a Sharkwerks race setup in black that is barely used. I think I have a JCR center delete as well. The design is similar to Sharkwerks, but it gives a higher pitched "tinny" sound.

On all of these, my experience is that you really have to hear them yourselves. Recordings never truly capture the sounds well. Perhaps the advice above will at least offer some consistency in the recording method.

I think I've mentioned it before, but I'm running Dundon headers into an RSS center delete. It sounds sublime. Yes, it's loud, but it really doesn't drone like you may expect. In fact, I felt like the valved side deletes with center muffler droned more.
Old 12-19-2023, 08:00 PM
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Originally Posted by ranger22
If someone is looking for RSR sound, I still have a Sharkwerks race setup in black that is barely used. I think I have a JCR center delete as well. The design is similar to Sharkwerks, but it gives a higher pitched "tinny" sound.

On all of these, my experience is that you really have to hear them yourselves. Recordings never truly capture the sounds well. Perhaps the advice above will at least offer some consistency in the recording method.

I think I've mentioned it before, but I'm running Dundon headers into an RSS center delete. It sounds sublime. Yes, it's loud, but it really doesn't drone like you may expect. In fact, I felt like the valved side deletes with center muffler droned more.
Would love to hear it, I had the GMG center delete and should have tried it. I was thinking of going for the Dundon megaphone...missed the one on marketplace last year.
Old 12-19-2023, 09:23 PM
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Originally Posted by ranger22
If someone is looking for RSR sound, I still have a Sharkwerks race setup in black that is barely used. I think I have a JCR center delete as well. The design is similar to Sharkwerks, but it gives a higher pitched "tinny" sound.

On all of these, my experience is that you really have to hear them yourselves. Recordings never truly capture the sounds well. Perhaps the advice above will at least offer some consistency in the recording method.

I think I've mentioned it before, but I'm running Dundon headers into an RSS center delete. It sounds sublime. Yes, it's loud, but it really doesn't drone like you may expect. In fact, I felt like the valved side deletes with center muffler droned more.
+1 on being interested to hear it. Do most people go for the 2.5" Dundon headers for more options on the rear section? Not sure whether 3" by itself has a tangible power benefit, though I think Jamie has mentioned it's best to do 3" if you do their resonance intake.
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Old 12-19-2023, 09:45 PM
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Originally Posted by Vocan
+1 on being interested to hear it. Do most people go for the 2.5" Dundon headers for more options on the rear section? Not sure whether 3" by itself has a tangible power benefit, though I think Jamie has mentioned it's best to do 3" if you do their resonance intake.
I did 2.5” for no other reason than resell since they interchange with most mufflers, never know when I might want something else
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Old 12-19-2023, 10:45 PM
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Originally Posted by Wonderdan
Would love to hear it, I had the GMG center delete and should have tried it. I was thinking of going for the Dundon megaphone...missed the one on marketplace last year.
I'll make a recording, but it's going to be a few weeks before I can. I'm away from my car for the holidays.
Old 12-20-2023, 02:45 AM
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Wish this thread existed for when I was shopping around vs scouring YouTube and the web for clips.

I have a JCR superlight Ti center bypass which has a larger diameter, lighter gauge Ti and different merge than their standard one. I’ll post a sound clip soon. Couldn’t find any sound clips of this one but went for it anyways and glad I did. Hope it helps others in the same boat.
Old 12-23-2023, 01:05 PM
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More discussion here and sound clips, as well as many other threads if you search:
https://rennlist.com/forums/997-gt2-...-worth-it.html

JB
Old 12-23-2023, 04:28 PM
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SW center bypass, Soul non-valved side deletes.

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