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*New Product* MAP Integrated O2 Housing / O2 Eliminator Downpipe for Evolution 8/9

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Old Nov 14, 2008 | 09:22 AM
  #16  
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Originally Posted by J8dailo
how much shipped to 46526 if i do a write up on it
PM sent thanks!

Originally Posted by J8dailo
wait...this also eliminates the cat??
We do not have this option as of yet, but it is in the works

Originally Posted by evoxsi
... how does this fit with the transfercase, my current dp is up against it and i cant stand it.
Guaranteed not to rub anything

Last edited by maperformance; Nov 14, 2008 at 09:57 AM.
Old Nov 14, 2008 | 09:46 AM
  #17  
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Originally Posted by Tom-05-MR
Very cool piece. I'm looking forward to seeing pictures of the recirculating version. I've always wanted something like that; it seems to me that the direct-replacement O2 housings just don't go far enough.

I'm a little concerned about the possibility of different thermal expansion between the turbine outlet pipe and the wastegate outlet pipe on a recirculating version, and it makes me wonder if a slip fit section like AMS uses on their recirculating turbo kits would be a good idea.

I worry about the difficulty of the install, too: I know you've said it's easy, but I've installed an O2 housing, and it's much harder than installing a downpipe. Way too many projects begin with "remove the undertray and downpipe to get clearance", so it's not just a one-time install.

Have you considered a two-piece version, with a flange just before or after the downpipe turns to run parallel to the ground? That'd make removing the horizontal portion of the downpipe even easier than stock, and it might make it easier to incorporate the wastegate slip fitting that I mentioned above, though I'm sure it'd bump the cost up.

I'm sorry, this is all coming out sounding negative. I really like the look of this product. I'm not willing to put up with a wastegate dump and I've never been happy with the sacrifices that replacement O2 housings have to make to mate up to stock and stock-replacement downpipes. I like your ceramic-coated mild steel approach as well; I agree that it should provide all the protection from corrosion that you could ever need while offering less thermal expansion.
Thank you for the constructive criticism sir this is exactly what we are looking for as this is our first product we are bringing to market. Please take a look at the image of the recirculating version that I have added. In regards to different thermal expansion between the downpipe and recirculating pipe I can't say that we have run into any issues with this in the past and we have been making one off O2 eliminators for DSM's for quite some time now. In regards to a two piece version we could definitely provide this as an option at a small additional cost, would anyone else like to see this as an option? It looks like we could fit a flange in the area before the flex...

Last edited by maperformance; Nov 14, 2008 at 09:56 AM.
Old Nov 14, 2008 | 11:24 AM
  #18  
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Is there anyflow restrictions or power losses because of the flex pipe?
Old Nov 14, 2008 | 11:43 AM
  #19  
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There should be no restriction or power loss as it a full 3" pass through. The factory O2 housing + downpipe configuration utilizes a ball style connection to absorb the stresses of engine movement. As we have eliminated that connection here we chose to use this SS flex section to absorb those stresses and increase longevity even though it significantly increases our cost of production. There are some downpipes on the market that utilize a flat flange connection and do not incorporate a flex section as we have here and that just flat out scares me in regards to how long those can possibly last...
Old Nov 14, 2008 | 12:03 PM
  #20  
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Originally Posted by maperformance
There should be no restriction or power loss as it a full 3" pass through. The factory O2 housing + downpipe configuration utilizes a ball style connection to absorb the stresses of engine movement. As we have eliminated that connection here we chose to use this SS flex section to absorb those stresses and increase longevity even though it significantly increases our cost of production. There are some downpipes on the market that utilize a flat flange connection and do not incorporate a flex section as we have here and that just flat out scares me in regards to how long those can possibly last...
Good info, thanks for the reply!
Old Nov 14, 2008 | 03:23 PM
  #21  
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No problem that's what we are here for Anybody else interested in special introductory pricing?
Old Nov 14, 2008 | 04:34 PM
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Old Nov 15, 2008 | 08:26 AM
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Old Nov 15, 2008 | 02:45 PM
  #24  
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what about relocating the recirc lower so it has more of a direct shot down the exhaust?
Old Nov 15, 2008 | 03:47 PM
  #25  
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That was where we initially had it but we ran into intercooler pipe clearance issues
Old Nov 15, 2008 | 10:16 PM
  #26  
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Very cool piece
Old Nov 16, 2008 | 05:46 AM
  #27  
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Originally Posted by red evo8
what about relocating the recirc lower so it has more of a direct shot down the exhaust?
Originally Posted by maperformance
That was where we initially had it but we ran into intercooler pipe clearance issues


Old Nov 17, 2008 | 08:11 AM
  #28  
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Old Nov 17, 2008 | 04:05 PM
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Old Nov 17, 2008 | 05:54 PM
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Checked this over in person tonight; very nice looking with high quality welds.



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