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Dundon GT4/Spyder Race Header Group Buy

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Old 11-19-2016, 01:44 PM
  #196  
Leuz
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I didn't know **** was allowed on this forum.
Old 11-19-2016, 02:50 PM
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^^^^
QUOTE=Jamie@dundonmotorsports;13756010]Not wiped down or scotch brited, but you get the general)[/QUOTE]

dirty too lol 😂
Old 11-21-2016, 02:44 AM
  #198  
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1. Alan. C: 11/9/16 Paid
2. Joel: 11/8/16 Paid
3. 512GT4: 11/14/16 Paid
4. Ben C. Pro Tune
5. d00d: Pro Tune 11/22/16 Paid
6. Jaime L. :11/8/16 Paid
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10. fstclyz: 11/9/16 Paid
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15. mpiazza911: ProTune 11/12/16 Paid
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17. Robert F.: 11/16/16 Paid
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Last edited by Jamie@dundonmotorsports; 11-22-2016 at 01:41 PM.
Old 11-21-2016, 03:22 AM
  #199  
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I've officially closed this group buy, we're over full! We will start shipping system this week, I know I've been saying this week for a while. These are far more complex to build than we expected, that said we're getting them together, have confirmed the results on our car with a production set. Will have the first 5 sets out this week and hopefully another 5 out as well.

I've been tweaking and refining the tune, once I have final numbers I'll post up the production system results. The production pieces are more precise than the prototype (mandrel bends made to spec, built in jigs, etc..) and also make more power, more on that later...

Also here's another picture we took of the stock system, another companies race headers and the Dundon GT4 Race Header
GT4 Stock Header on Left, Competitor Race Header Middle, Dundon GT4 Race Header on the Right

ace headers
Old 11-21-2016, 03:24 AM
  #200  
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If anyone wants me to take their spot please pm me.
Old 11-21-2016, 05:10 AM
  #201  
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being a little mechanically challenged, the 4th tube underneath the main tubes is that for.... i don't know c02 sensor or something
Old 11-21-2016, 12:44 PM
  #202  
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Originally Posted by O5C4R
being a little mechanically challenged, the 4th tube underneath the main tubes is that for.... i don't know c02 sensor or something
Looks like a resonator or something. But I'm as challenged as you are :P
Old 11-21-2016, 01:30 PM
  #203  
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Originally Posted by O5C4R
being a little mechanically challenged, the 4th tube underneath the main tubes is that for.... i don't know c02 sensor or something
Originally Posted by Leuz
Looks like a resonator or something. But I'm as challenged as you are :P
Good eyes, we've filed for a provisional patent as in our initial search couldn't find anything being used the way we're using it. Essentially the 4th tube helps magnify the headers ability to scavenge air from the cylinders...
Old 11-21-2016, 03:22 PM
  #204  
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This just gets better and better
Old 11-21-2016, 05:26 PM
  #205  
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Gorgeous!
Old 11-21-2016, 06:07 PM
  #206  
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Originally Posted by Jamie@dundonmotorsports
Good eyes, we've filed for a provisional patent as in our initial search couldn't find anything being used the way we're using it. Essentially the 4th tube helps magnify the headers ability to scavenge air from the cylinders...
holy ****.. and you didn't mention this unusual feature previously???
Old 11-22-2016, 02:19 AM
  #207  
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Originally Posted by CAlexio
holy ****.. and you didn't mention this unusual feature previously???
We wanted to keep it under wraps until they were ready to ship. We do our best to be innovative and design parts that do what we say they do!



First two on the list shipped!! Two to three more out tomorrow!!

We included.
Stainless studs and nuts in place of the stock exhaust manilfold bolts.
K&N air filters for all of those that have been patient enough to wait
A pick for installing some of the retaining springs.
Full instructions!

We'll keep pumping them out and can't wait for everyone to get them on their cars and give us feedback!
Old 11-22-2016, 11:54 AM
  #208  
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Originally Posted by Jamie@dundonmotorsports
We wanted to keep it under wraps until they were ready to ship. We do our best to be innovative and design parts that do what we say they do!



First two on the list shipped!! Two to three more out tomorrow!!

We included.
Stainless studs and nuts in place of the stock exhaust manilfold bolts.
K&N air filters for all of those that have been patient enough to wait
A pick for installing some of the retaining springs.
Full instructions!

We'll keep pumping them out and can't wait for everyone to get them on their cars and give us feedback!
Looks like Christmas is coming early this year! You guys are doing some really exciting work!
Old 11-22-2016, 12:40 PM
  #209  
Alan C.
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Looking forward to receiving my set. Thanks for the extras.
Old 11-22-2016, 03:46 PM
  #210  
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Know nothing about exhaust design, so a stupid question - wouldn't some of the hot exhaust gases leak out through that 4th pipe into places where you don't want hot gases?


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