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Money2536's Review of Dundon Motorsports Headers/Exhaust

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Old 02-12-2016, 08:14 AM
  #61  
qbix
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Dyno results please!
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Old 02-12-2016, 10:14 AM
  #62  
Charles@dundonmotorsports
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Originally Posted by loveivs
If the cat will be bolt-on to the system. I will place the order for de-cat version. If not, I will wait till the R&D is done.

Cheers
Originally Posted by qbix
Dyno results please!
So I can make cats fit the current setup HOWEVER I would have to remove the flaps and they would either use both ports or just the lower port on the center muffler. I could try this but would not be able to make cats and flaps work with the current headers without spending a lot of money to make it work, at that point it is easier for me to build a new set of headers with the intention for cats.

and yes, I would dyno that as well
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Old 02-12-2016, 11:32 AM
  #63  
Seth Thomas
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Originally Posted by rm21
Matt - I appreciate all the effort you've put into finding the perfect exhaust. I did the TPC side bypass that preserves the valves but didn't change the headers or remove the cats. It will be interesting to compare these two options at the Smokies event. My drone is gone and my valve transition is also more subdued as well. I'm sure I'm not making as much power as the Dundon setup but I'm surprised you're not more concerned about running catless. It is against the law and your videos certainly get lots of attention. Seems like a real risk. I'm curious why aren't you more concerned about that?
I would agree with this statement. Be careful as the government is now attempting to ban even racecars with cats removed.

https://www.yahoo.com/autos/epa-move...140312457.html
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Old 02-12-2016, 11:34 PM
  #64  
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Old 02-13-2016, 12:26 AM
  #65  
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Matt. Your vids are amazing. I have never had anyone interested in doing this stuff before. I should have you do more of this for us on other cars or setups. Thanks again.
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Old 02-13-2016, 01:51 AM
  #66  
bigskyGT3
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Matt I wish you were doing all this on a GT4. Nice videos.
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Old 02-13-2016, 01:58 AM
  #67  
Alan C.
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And he will have an audience of 60 plus GT car owners in about 60 days.
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Old 02-13-2016, 02:37 AM
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When are you going to make and test catted version?
Cat back is an option but makes things complicated in Germany so I am hesitant to get hold of this version.

Sorry if I missed that and was already said!
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Old 02-13-2016, 09:07 AM
  #69  
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Originally Posted by Jamie_GT3
Just need more hours in the day. Charles and I spoke of this today and he scoped it out. We'll need to re route the headers to make room. We want to test a few configurations to ensure we keep as much of the power as possible! We have a few systems to finish up and ship out, the catted setup is next on the docket!!
My RS isn't here yet, but living in an emissions country will require cats. I am very interested to see what you come up with.
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Old 02-13-2016, 04:32 PM
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Originally Posted by loveivs
If I get the de-cat version now. Will I be able to add the cat (after it's coming out) to the system later?
working on bulk purchase of HJS 200 CPSI cats now... I do all the sourcing and "production" side of DMS, Charles already has the designs in mind and 2-3 variants to test. Will update everyone as we get the designs and testing completed!
Last edited by Jamie_GT3; 02-13-2016 at 07:24 PM.
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Old 02-13-2016, 05:16 PM
  #71  
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Originally Posted by Jamie_GT3
working on bulk purchase of HJS 200 cel cats now... I do all the sourcing and "production" side of DMS, Charles already has the designs in mind and 2-3 variants to test. Will update everyone as we get the designs and testing completed!
Keep it up DMS!!!! I know that if you can get much of the gains in a cat'd version, it would sell like nothing else out there.
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Old 02-13-2016, 07:24 PM
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Originally Posted by MileHigh911
Keep it up DMS!!!! I know that if you can get much of the gains in a cat'd version, it would sell like nothing else out there.
Thanks for the encouragement!
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Old 02-13-2016, 07:48 PM
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Originally Posted by Jamie_GT3
Just need more hours in the day. Charles and I spoke of this today and he scoped it out. We'll need to re route the headers to make room. We want to test a few configurations to ensure we keep as much of the power as possible!

We have a few systems to finish up and ship out, the catted setup is next on the docket!!
Don't forget the GT4 headers! With cats of course...
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Old 02-13-2016, 08:12 PM
  #74  
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Originally Posted by Bardman
Don't forget the GT4 headers! With cats of course...

We've got two weeks until the GT4 gets here, but don't worry, Charles went an inspected a GT4 on a lift getting an alignment on Thursday and has a few ideas bouncing around. We'll get it all done.
Last edited by Jamie_GT3; 02-13-2016 at 11:04 PM.
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Old 02-13-2016, 09:47 PM
  #75  
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Very interested in what you guys come up with for catted GT4 option. Subscribed.
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