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Dundon Race Headers on 991.1 GT3

 
Old 01-12-2019, 06:17 PM
  #16  
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Originally Posted by meaker View Post
Awesome! I would love to have them on my. 2 but we have state emissions test every year and I heard more CELs on the .2.

street systems are solid and no loss in peak power. We’re working on the race system, and some customers are running it successfully with no CEL...
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Old 01-12-2019, 08:13 PM
  #17  
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Originally Posted by [email protected] View Post



street systems are solid and no loss in peak power. We’re working on the race system, and some customers are running it successfully with no CEL...
Jamie,

Are the quoted gains on the website only if you do the tune as well?
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Old 01-12-2019, 08:46 PM
  #18  
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Originally Posted by mwar99 View Post
Jamie,

Are the quoted gains on the website only if you do the tune as well?
All of our GT3 Dynos are without a tune.
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Old 01-13-2019, 03:07 PM
  #19  
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No doubt the Dundon system sounds killer and adds REAL POWER.

I promised myself that i was keeping the headers and cats stock.
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Old 01-13-2019, 03:14 PM
  #20  
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Originally Posted by PhilT3 (PT3) View Post
No doubt the Dundon system sounds killer and adds REAL POWER.

I promised myself that i was keeping the headers and cats stock.
We can do the street system this time and a loud muffler off the bat. You know I'd take care of the OG Dundon family!


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Old 01-13-2019, 05:02 PM
  #21  
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Originally Posted by PhilT3 (PT3) View Post
No doubt the Dundon system sounds killer and adds REAL POWER.

I promised myself that i was keeping the headers and cats stock.
Phil, you need these. Otherwise you'll be struggling to keep up in the Spring.
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Old 01-13-2019, 05:11 PM
  #22  
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Originally Posted by PhilT3 (PT3) View Post
No doubt the Dundon system sounds killer and adds REAL POWER.

I promised myself that i was keeping the headers and cats stock.
This is what I told myself as well. I wonder how long that will last.
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Old 01-13-2019, 05:24 PM
  #23  
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Originally Posted by PhilT3 (PT3) View Post
No doubt the Dundon system sounds killer and adds REAL POWER.

I promised myself that i was keeping the headers and cats stock.
Me too... But I was wrong.... Ahahahahahah
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Old 01-13-2019, 05:24 PM
  #24  
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Originally Posted by Buteo View Post

We only love once my friend!...I just splurged on an Akrapovic slip on that I found in the marketplace. Debating on combining with the Dundon again just like my gt4.

Alan- does the Dundon Gt3 header remove the side mufflers? Looks like it from the pictures I see.
Nice! Not too much longer, buddy. You have a countdown timer running lol?
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Old 01-13-2019, 11:28 PM
  #25  
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Buteo, Dundon race eliminates the sides.
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Old 01-13-2019, 11:30 PM
  #26  
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So valved with the stock muffler, it sounds stock and without any drone? Above 4-5k it sounds like a proper race exhaust?

Last edited by jkfuel; 01-14-2019 at 04:08 AM.
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Old 01-14-2019, 01:17 AM
  #27  
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Originally Posted by Alan C.
Yes, The Dundon headers eliminate the side mufflers dropping about 40 lb. in the process.
Meaker, Dundon has a catted set along with two muffler choices. I believe Dundon is working on a solution to the CEL issue.
The catted ones doesn't do it for me.
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Old 01-14-2019, 10:48 AM
  #28  
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Originally Posted by meaker View Post
The catted ones doesn't do it for me.
Seriously curious what aspect you do not like.

Last edited by 1Gunner; 01-14-2019 at 11:12 AM.
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Old 01-14-2019, 11:10 AM
  #29  
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Originally Posted by jkfuel View Post
So valved with the stock muffler, it sounds stock and without any drone? Above 4-5k it sounds like a proper race exhaust?
Yes basically that is correct. The headers Alan has are from my .1RS. When they were on my car the exhaust noise inside the car was exactly as you describe it. They were very stock like sounding with no drone at all. From 2500 to 4000 RPM they were slightly louder than stock by about 5% or 10% which meant it was easy to have a conversation in the car with someone going down the road. Get into full throttle mode and the sound opens up but still not obnoxious loud inside the car. Outside they car they screamed under WOT.
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Old 01-14-2019, 05:26 PM
  #30  
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Originally Posted by Seth Thomas View Post
Yes basically that is correct. The headers Alan has are from my .1RS. When they were on my car the exhaust noise inside the car was exactly as you describe it. They were very stock like sounding with no drone at all. From 2500 to 4000 RPM they were slightly louder than stock by about 5% or 10% which meant it was easy to have a conversation in the car with someone going down the road. Get into full throttle mode and the sound opens up but still not obnoxious loud inside the car. Outside they car they screamed under WOT.
Thanks for the response. Definitely on my radar now...
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