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40whp and 30wtq gains with Dundon Motorsports Headers, no flash required!

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Old 04-16-2016, 10:21 AM
  #151  
GT3 KSA
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I traded my Akrapovic for a set of DMS race headers. Should be installed anytime in the next 2-10 days.

I know i will miss the Akrapovic sound but more power always dominates
Old 04-16-2016, 10:25 AM
  #152  
Buenen
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What are my chances of getting a set of your headers shipped to Qatar?
Old 04-16-2016, 10:27 AM
  #153  
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Originally Posted by Buenen
What are my chances of getting a set of your headers shipped to Qatar?
The ones i am getting are in Qatar. He is selling his car so i am taking them off his hands.
Old 04-16-2016, 11:00 AM
  #154  
Charles@dundonmotorsports
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Originally Posted by Buenen
What are my chances of getting a set of your headers shipped to Qatar?
worldwide shipping is no problem. Infact most of our exhausts are shipped to the rest of the world, USA is the smaller market
Old 04-16-2016, 12:27 PM
  #155  
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Originally Posted by Charles@dundonmotorsports
I thought all the rev limiters got changed to 8500 at the last second. The RS we tested on the dyno was 8500.
Oh not 8800? I remember I did at least more than 8500rpm... I will try it out tomorrow
Old 04-16-2016, 02:22 PM
  #156  
Jamie@dundonmotorsports
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Originally Posted by Buenen
What are my chances of getting a set of your headers shipped to Qatar?
PM coming!
Old 04-16-2016, 02:32 PM
  #157  
karimgt3
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Originally Posted by 911_RS
Oh not 8800? I remember I did at least more than 8500rpm... I will try it out tomorrow
My car does 8800 in 1st and 2nd
Old 04-16-2016, 02:46 PM
  #158  
Robert Linton
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How much of the gain is due to the headers and how much to the reprogramming of the ECU?
Old 04-16-2016, 03:04 PM
  #159  
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Originally Posted by Robert Linton
How much of the gain is due to the headers and how much to the reprogramming of the ECU?
We are seeing 41-42whp on the headers and 15-16whp and 10lb ft tq on STG 1 flash but the STG 2 sounds like 20-25whp and 15+ lb ft tq

we have not had a chance to make it back to the dyno to finalize the tune. Money2536 had the 2nd revision tune and should be comparing on the dyno soon.
Old 04-16-2016, 03:17 PM
  #160  
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I'll bet it's a limit/gear now. Lower gears 8800, upper gears 8500.
Old 04-16-2016, 08:00 PM
  #161  
Macca
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Originally Posted by karimgt3
My car does 8800 in 1st and 2nd
Yes, it's actually 8750 in 2nd gear but who's splitting hairs lol!

The engine in SportAuto is mostly restricted to 8550-8675
Old 04-16-2016, 09:55 PM
  #162  
991 GT3
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So your fine tuning the current Dundon for best efficiencies? I'm buying one as soon as you've squeezed all power available. Keep informed
Old 04-16-2016, 10:53 PM
  #163  
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Originally Posted by 991 GT3
So your fine tuning the current Dundon for best efficiencies? I'm buying one as soon as you've squeezed all power available. Keep informed
The Race Headers are 100% finished and no revisions coming. We'll continue to work on the tune. But the headers are good!

We're working on the version with Catalytic converters, and a version for the Gt4!
Old 04-17-2016, 11:51 AM
  #164  
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Originally Posted by GT3 KSA
I traded my Akrapovic for a set of DMS race headers. Should be installed anytime in the next 2-10 days.

I know i will miss the Akrapovic sound but more power always dominates
I drove the GT3 with no cats, headers and oem center mufflers.
Sounds great with this much power added, weight reduction, workmanship and price point this setup is a no brainer.

Another additional big benefit that you possibly could get with a tune is that the flaps can be permanent open or closed with the exhaust button.

Of course you could just unplug it and drive it open all the time but the car is such a nice quiet DD that I'd keep the flaps active for when I'm using blue tooth for phone calls..
Old 04-17-2016, 11:54 AM
  #165  
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Originally Posted by Macca
Yes, it's actually 8750 in 2nd gear but who's splitting hairs lol!

The engine in SportAuto is mostly restricted to 8550-8675
I don't like Sport + it constantly feels like raping the engine and gearbox for no reason. Some get goosebumps, I cringe.. And that's with lower RS RPM's...


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