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Dual Exhaust/Test Pipe RASP proven fix

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Old 01-28-2007, 11:51 AM
  #41  
ISMSOLUTIONS
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Originally Posted by jondimellow
so this is like a resonator?
It's a resonated X-Pipe...
Old 02-06-2007, 08:00 PM
  #42  
GamblerZ
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As he kept saying "x-pipe", I thought he was refering to Magnaflow's x-pipe like this

Old 02-12-2007, 04:38 PM
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will this work with the Borla too?
Old 06-20-2007, 05:22 PM
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stewieisslow
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so for a invidia g200 exhaust what size magnaflow x pipe do i need
Old 06-20-2007, 06:00 PM
  #45  
nathanwl2004
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anybody have clips of the fast intentions exhaust with un res TP's?
Old 06-22-2007, 01:12 PM
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Originally Posted by stewieisslow
so for a invidia g200 exhaust what size magnaflow x pipe do i need
You will have to know the pipe size and how much space you are working with.

Jack your car up and see.

Later
Todd
Old 08-13-2007, 07:24 PM
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Anyone done with this fix with stock header and CAT? Some says drone gone completely but I saw others saying drone range went lower to 1k-1.5k. I like my Injen SES but really annoied with drone at 2k. Thanks for the help!
Old 08-17-2007, 08:56 AM
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We fabricated an x-pipe for my HKS Hi Power with stock headers and HFC's. It did a pretty good job of eliminating the h-pipe rasp - and helped to net a few more ponies up on the dyno.
Attached Thumbnails Dual Exhaust/Test Pipe RASP proven fix-dsc01931-1-.jpg   Dual Exhaust/Test Pipe RASP proven fix-dsc01933-1-.jpg  

Last edited by gothchick; 08-17-2007 at 08:59 AM.
Old 08-17-2007, 08:59 AM
  #49  
ISMSOLUTIONS
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Originally Posted by gothchick
We fabricated this mod for my HKS hi Power with stock headers and HFC's. It did a pretty good job of eliminating the h-pipe rasp - and helped to net a few more ponies up on the dyno.
For the most part, what you created was an X pipe...
Old 08-17-2007, 09:02 AM
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Originally Posted by ISMSOLUTIONS
For the most part, what you created was an X pipe...
Yeah, that was the intent... We couldn't get the Magnaflow x-pipe to fit right, so we just made a custom one.

I've been extremely happy with it. Great mod.

Last edited by gothchick; 08-17-2007 at 09:11 AM.
Old 08-17-2007, 10:18 AM
  #51  
Alberto
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Originally Posted by gothchick
We fabricated an x-pipe for my HKS Hi Power with stock headers and HFC's. It did a pretty good job of eliminating the h-pipe rasp - and helped to net a few more ponies up on the dyno.
Post a before and after dyno of this mod/claim.
Old 08-17-2007, 10:44 AM
  #52  
Mid117
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anyone try a nismo catback with test pipes? I'd like to know
Old 08-17-2007, 11:47 AM
  #53  
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Originally Posted by Alberto
Post a before and after dyno of this mod/claim.
Sure... The DD was done in Mar of '07 with the h-pipe. The DJ was done in June of '07 with the x-pipe.

People seem to use a range of DJ to DD conversion factors. But most use between 11% to 13%. Pick which ever you feel is relavent.

before & afters:
my DJ to DD correction factor of 11% = +16 whp
my DJ to DD correction factor of 13% = +10 whp
my DJ to DD correction factor of 15% = +05 whp

I actually put it up on the dynojet to confirm additional road tuning tweaks. Just tweaking it for max whp within my target afr & knock thresholds. So the new dyno numbers were also the result of addtional utec tuning... How much of the additional whp was tuning vs. x-pipe mod?

Last edited by gothchick; 09-17-2007 at 12:31 PM.
Old 09-14-2007, 02:39 PM
  #54  
Freakzilla
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Default Please, I need help.

Hi, I am using a Invidia G200 here in Germany and have a loud rasp from 3.500 rpm on in every gear when I accelerate quickly. I think I have no mufflers like u would call it in English. How can I fix the rasping a bit? The problem is that our regulation department for vehicles here says that if I insert something to slow down the airflow it would result in some kind of too high backpressure which could destroy the engine and is in addition not allowed in Germany. I would be glad for some help. Sorry if I don't use the correct terms maybe. I hope someone can help me. Thanks in advance.
Old 09-17-2007, 09:14 AM
  #55  
ZtrackFL
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Has anyone try this fix on the New Injen Track Edition exhaust with Test Pipes on there cars? I like my exhaust but I can stand the droning it produces.

Thanks
Old 09-24-2007, 03:54 PM
  #56  
meaj82
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Anyone w/ a borla try this yet? I know its not a "true dual" like the injen, but I would like to get rid of the h-pipe. Any one have any info? Apprecieate anything. Thanks in advance!!
Old 09-24-2007, 04:13 PM
  #57  
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^you could cut off the H-section and put in X-pipe. I believe someone already did this. Try a search maybe?
Old 09-24-2007, 05:05 PM
  #58  
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Only thing I found was someone planning to do it but never updated. I'm still looking around...
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