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Dundon Header Exhaust Power Package!!!

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Old 04-29-2022 | 10:09 AM
  #31  
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Originally Posted by FrostyAZ
I can’t wait to hear what the Dundon sounds like. $20K seems like A LOT of $$$$ for exhaust but I guess nothing is cheap any more. I had been holding out for Akrapovic and it looks like those are starting to ship as well.

not really. It’s only 10% of the cost of the vehicle LOL!
Old 04-29-2022 | 10:54 AM
  #32  
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Same exhaust in Stainless is around $14k, and the SS is 25lbs lighter than stock. $2OK is for the titanium.
Old 04-29-2022 | 11:00 AM
  #33  
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Originally Posted by redpriest
Hold up - what are the specs on the wheels? If these fit over PCCBs sign me up day 1.
Yep. I will have them on tomorrow at the track.

Will be running Hankooks over OEM PCCBs.
Old 05-02-2022 | 06:34 AM
  #34  
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Looking forward to some sound clips.
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Old 05-02-2022 | 12:31 PM
  #35  
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Here is a cold start - I recorded it at 7:30 am, so I couldn't rev it up without waking everyone up...

We recorded on track audio this weekend - should have video/sound shortly.



FYI - recorded with an iPhone - so not sure if the audio range is for the phone, but this seems pretty accurate.

Last edited by raymort; 05-02-2022 at 12:32 PM.
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Old 05-02-2022 | 12:39 PM
  #36  
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Here is a comparison of the tips after a few heat cycles on track. It looks like Jamie and the gang were able to roll the tips over so it's not just an end cut. It was a really great and unexpected result!



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Old 05-03-2022 | 04:49 PM
  #37  
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View this post on Instagram

Its on like donkey kong…
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Old 05-03-2022 | 05:19 PM
  #38  
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Originally Posted by raymort
Here is a comparison of the tips after a few heat cycles on track. It looks like Jamie and the gang were able to roll the tips over so it's not just an end cut. It was a really great and unexpected result!


It looks like it is sticking out way too much.
Old 05-03-2022 | 05:55 PM
  #39  
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Originally Posted by Dorian C
It looks like it is sticking out way too much.
It sticks out past the diffuser, but I think it doesn't stick out past the end trim of the bumper.
Old 05-03-2022 | 05:58 PM
  #40  
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Here is a view that shows it better:


Old 05-03-2022 | 06:08 PM
  #41  
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Originally Posted by groundhog
What gain claims (torque and HP) are they making for $20K and a 10kg weight difference?

Will they guarantee the cat material will hold up at track induced temperatures

I haven't bothered with race headers etc on high power and torque NA cars because the gains without a tune are minimal. Moreover, when I speak to people in that part of the aftermarket world and you start asking about who did the the gas flow design and what difference did it make to inertial and wave scavenging they usually run a mile. At that price point I'd expect answers not just a dyno plot.

Dunno, maybe these guys are different. At that price point I'd expect them to be...
Flow discussion starts @ 4:44...scavenging discussion @ 7:37:



...make of it what you will.
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Old 05-03-2022 | 08:02 PM
  #42  
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Originally Posted by Dorian C
It looks like it is sticking out way too much.
looks good to me. The stock tips are anemic at best. About to install soon
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Old 05-05-2022 | 12:04 AM
  #43  
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Couple data points.. only did a couple pulls with the exhaust.. it makes power. Same stretch of road, not sure why slopes are different usually its 0%. Most noticeable bump is in the mid range tq and throttle response. It lights up the tires on demand



Stock




Dundon street headers plus Ti muffler

Last edited by Rennolazine; 05-05-2022 at 12:06 AM.
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Old 05-05-2022 | 12:15 AM
  #44  
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7.79 60-130 is pretty damn quick for an NA car with “~540hp”
Old 05-05-2022 | 12:17 AM
  #45  
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Originally Posted by PTS
7.79 60-130 is pretty damn quick for an NA car with “~540hp”
it rips. Feels like my R8 did


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