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Downpipes..Recirculate or Vent To Atmosphere?

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Old Nov 3, 2009, 12:50 PM
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Downpipes..Recirculate or Vent To Atmosphere?

On my last IX my 02 housing I had vent to the atmosphere (Loud, too loud). I have been researching exhausts for my X and I like both the AMS and ETS TBE systems. I am trying to decide between the AMS widemouth downpipe and the ETS split downpipe.

Is there any advantage to venting to the atmosphere?
Old Nov 3, 2009, 01:14 PM
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less exhaust pressure through the downpipe. less exhaust pressure = moar powah
Old Nov 3, 2009, 01:16 PM
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Originally Posted by flyboytb
less exhaust pressure through the downpipe. less exhaust pressure = moar powah
So for maximum power you would vent to the atmosphere.

Being that it is my DD I think I am going to go for the quieter route.
Old Nov 3, 2009, 05:34 PM
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does anyone have a switch for this ?
Old Nov 3, 2009, 06:08 PM
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Remove.

Last edited by aftershock141; Sep 26, 2011 at 07:11 PM.
Old Nov 3, 2009, 09:38 PM
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I've seen the electric cutouts to open up the entire exhaust, but I bet having one to toggle your wastegate from internal to external would be unique and you could have the best of both worlds.
Old Nov 3, 2009, 09:49 PM
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Originally Posted by Hiboost
I've seen the electric cutouts to open up the entire exhaust, but I bet having one to toggle your wastegate from internal to external would be unique and you could have the best of both worlds.
Yep. OP search QTP cutouts.
Old Nov 4, 2009, 09:23 AM
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Originally Posted by Hiboost
I've seen the electric cutouts to open up the entire exhaust, but I bet having one to toggle your wastegate from internal to external would be unique and you could have the best of both worlds.
A local shop here did just that on a few months back,I think it was a great idea.I have DP with an open dump on my car and love it.
Old Nov 4, 2009, 11:36 AM
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Ah very cool, I'm thinking about fabbing up a pipe that I can attach to my ATP Downpipe with external wastegate. Right now it's re-routed into the downpipe but for racing it would be fun to be able to swap an external dump tube in there. I can just rotate the external wg a bit and attach the piece, then cap off the downpipe for a 5-10 min swap that gives a bit of hp and sounds really mean.
Old Nov 4, 2009, 12:56 PM
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isnt there mini mufflers people sometimes put on these to deaden the sound.
Old Nov 4, 2009, 02:59 PM
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They have many mufflers for the setup, but we have never tried them. We recommend the recirculated downpipe for daily drivers that don't want to be noticed under boost. If you want to vent to atmosphere you WILL be heard at WOT.

We like to separate the wastegate gases from the turbine gases to create a smooth flowing exhaust and less turbulence.

Thanks,

Michael
Old Nov 4, 2009, 03:09 PM
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Does the ETS downpipe fit RHD EVO X? (I'm looking for one and I know that the AMS widemouth doesn't.)

Michael can you chime in?

Regards.
Old Nov 4, 2009, 03:16 PM
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Originally Posted by weap0n
Does the ETS downpipe fit RHD EVO X? (I'm looking for one and I know that the AMS widemouth doesn't.)

Michael can you chime in?

Regards.
Honestly - I'm not sure. We have sold a couple overseas but I have never received feedback, so maybe? The answer is I dunno

Thanks,

Michael
Old Nov 5, 2009, 08:37 AM
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ETS Open dump!!! You won't be sorry!
Old Nov 5, 2009, 03:45 PM
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Ricer with the VTA.
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