Notices
Porsche Cup Cars
Sponsored by:
Sponsored by: Race Cars For You

996 Cup stock muffler

Thread Tools
 
Search this Thread
 
Old 03-08-2022 | 12:24 PM
  #1  
Mark Dreyer's Avatar
Mark Dreyer
Thread Starter
Addict
Rennlist Member
 
Joined: Oct 2006
Posts: 4,982
Likes: 673
From: Orlando, Florida
Default 996 Cup stock muffler

Does anyone have one of these available to sell? I am in process of getting a PPI on an 05 996 that doesn’t have the stock muffler anymore and since I love driving Roebling I’m Savannah I wanted to get the decibels down to pass sound check at that track.
Old 03-08-2022 | 10:51 PM
  #2  
carmoves's Avatar
carmoves
Advanced
 
Joined: Mar 2021
Posts: 54
Likes: 25
From: Minneapolis
Default

I have a dented one.
Old 03-08-2022 | 11:39 PM
  #3  
Mark Dreyer's Avatar
Mark Dreyer
Thread Starter
Addict
Rennlist Member
 
Joined: Oct 2006
Posts: 4,982
Likes: 673
From: Orlando, Florida
Default

Will it still function?
Old 03-09-2022 | 12:52 AM
  #4  
carmoves's Avatar
carmoves
Advanced
 
Joined: Mar 2021
Posts: 54
Likes: 25
From: Minneapolis
Default

It does. PM your email and I can send pictures and a part number.

Old 03-09-2022 | 01:00 AM
  #5  
spiller's Avatar
spiller
RL Community Team
Rennlist Member
 
Joined: Dec 2012
Posts: 2,611
Likes: 374
From: Adelaide, Australia
Default

Beware there are two versions of the stock muffler. A 103db version and a 110db
The following users liked this post:
Mark Dreyer (03-09-2022)
Old 03-09-2022 | 01:16 AM
  #6  
carmoves's Avatar
carmoves
Advanced
 
Joined: Mar 2021
Posts: 54
Likes: 25
From: Minneapolis
Default

Originally Posted by spiller
Beware there are two versions of the stock muffler. A 103db version and a 110db
If I recall, I have the 110 version. 996.111.029.90
Old 03-09-2022 | 07:06 AM
  #7  
Mark Dreyer's Avatar
Mark Dreyer
Thread Starter
Addict
Rennlist Member
 
Joined: Oct 2006
Posts: 4,982
Likes: 673
From: Orlando, Florida
Default

Oh right, my mechanic told me about the 2 different ones and said I’d need the 103db version. My goal is to run at Roebling which has a 102db limit.
Old 03-09-2022 | 04:55 PM
  #8  
Francesco996's Avatar
Francesco996
Instructor
 
Joined: Jan 2020
Posts: 245
Likes: 10
Default

I have a 997.111.029.90 that is currently being fixed, the catalysts got loose and are going to be welded back in

PM me if interested
Old 03-09-2022 | 05:43 PM
  #9  
Mike Roblin's Avatar
Mike Roblin
Rennlist Member
 
Joined: Mar 2013
Posts: 1,417
Likes: 575
From: South Florida
Default

It has been a long time since I've been to Roebling but my recollection was that the sound mic was on the outside of the track between start finish and turn 1. If that is still the case, couldn't you just put a set of 90 degree elbows on and point them towards the inside of the track?
Old 03-09-2022 | 05:45 PM
  #10  
ProCoach's Avatar
ProCoach
Rennlist
Basic Site Sponsor
 
Joined: Jun 2008
Posts: 19,289
Likes: 3,494
From: Durham, NC and Virginia International Raceway
Default

Originally Posted by Mike Roblin
It has been a long time since I've been to Roebling but my recollection was that the sound mic was on the outside of the track between start finish and turn 1. If that is still the case, couldn't you just put a set of 90 degree elbows on and point them towards the inside of the track?
That is correct, for the sound station. Depending on the temperature, air density and humidity, 90 degree turns may or may not make it. Almost certainly not for the louder option.
__________________
-Peter Krause
www.peterkrause.net
www.gofasternow.com
"Combining the Art and Science of Driving Fast!"
Specializing in Professional, Private Driver Performance Evaluation and Optimization
Consultation Available Remotely and at VIRginia International Raceway























Last edited by ProCoach; 03-09-2022 at 06:32 PM.
Old 03-09-2022 | 06:35 PM
  #11  
spiller's Avatar
spiller
RL Community Team
Rennlist Member
 
Joined: Dec 2012
Posts: 2,611
Likes: 374
From: Adelaide, Australia
Default

Originally Posted by carmoves
If I recall, I have the 110 version. 996.111.029.90
I have the 110 on my street car. It’s loud to say the least lol
The following users liked this post:
Williamsf1 (03-27-2022)
Old 03-09-2022 | 07:21 PM
  #12  
Mark Dreyer's Avatar
Mark Dreyer
Thread Starter
Addict
Rennlist Member
 
Joined: Oct 2006
Posts: 4,982
Likes: 673
From: Orlando, Florida
Default

Originally Posted by ProCoach
That is correct, for the sound station. Depending on the temperature, air density and humidity, 90 degree turns may or may not make it. Almost certainly not for the louder option.
Yes Ron Zitza is working with me to get the car setup, and he said the 103db muffler with a turndown would likely do the trick on passing sound check.
Old 03-10-2022 | 11:35 AM
  #13  
ProCoach's Avatar
ProCoach
Rennlist
Basic Site Sponsor
 
Joined: Jun 2008
Posts: 19,289
Likes: 3,494
From: Durham, NC and Virginia International Raceway
Default

He would know!
Old 03-23-2022 | 03:58 AM
  #14  
Francesco996's Avatar
Francesco996
Instructor
 
Joined: Jan 2020
Posts: 245
Likes: 10
Default

Originally Posted by Francesco996
I have a 997.111.029.90 that is currently being fixed, the catalysts got loose and are going to be welded back in

PM me if interested
Mark, that's how it looks like:

Old 03-23-2022 | 07:05 AM
  #15  
Mark Dreyer's Avatar
Mark Dreyer
Thread Starter
Addict
Rennlist Member
 
Joined: Oct 2006
Posts: 4,982
Likes: 673
From: Orlando, Florida
Default

Thanks for the pic. Sent you a PM.



All times are GMT -3. The time now is 08:26 PM.