Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

What will be a better investment?

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Old Jul 29, 2007 | 04:02 PM
  #1  
jnkirk1974's Avatar
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Fastest G35 In Rockwall
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From: Rockwall, Texas (Near Dallas)
What will be a better investment?

I am trying to decide between headers or a Unichip install.
Any recommendations? Can't afford both.

My mods are listed in my signature.

Thanks.

P.S. - A technosquare reflash is out of the question......I can't be without my car for any long period of time.
 

Last edited by jnkirk1974; Jul 29, 2007 at 04:05 PM.
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Old Jul 29, 2007 | 05:47 PM
  #2  
Calvin's Avatar
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what do you consider a long period of time? if you overnight it and have them overnight it...your down time would only be 3 days.
 
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Old Jul 29, 2007 | 07:27 PM
  #3  
steve21's Avatar
wtf? whats this line for?
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From: WEST COVINA/LA PUENTE
Unichip! Ftmfw!
 
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Old Jul 30, 2007 | 03:06 AM
  #4  
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Unichip or reflash on your car will yeild better gains than any set of headers.
 
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Old Jul 30, 2007 | 06:40 AM
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I agree with the other post...Unichip

Also if you decide to go FI you would need stock headers back on the car.
 
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Old Jul 30, 2007 | 08:42 PM
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To the OP . . . You might want to consider the following.

http://www.my350z.com/forum/showthread.php?t=279548

https://g35driver.com/forums/tuner-dyno/162472-need-tune-no-more-mail-required.html
 
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Old Jul 30, 2007 | 11:11 PM
  #7  
Calvin's Avatar
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Originally Posted by jimmykce1
Also if you decide to go FI you would need stock headers back on the car.
O.o
 
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Old Jul 30, 2007 | 11:17 PM
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Originally Posted by jimmykce1
Also if you decide to go FI you would need stock headers back on the car.
Not if he goes with a supercharger...

To the OP, no matter what, to get the best out of power, you WILL need both.

Remember, headers are virtually useless without HFC or Test pipes. Cats are the most restrictive part of the exhaust system, or so i've heard. There's no point in allowing more flow through the headers if it gets clogged up in the stock cats.

I highly recommend the UpRev Osiris reflash if you don't want to go the TS route for the reasons you stated.

.
 
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Old Jul 31, 2007 | 12:29 PM
  #9  
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Originally Posted by skaterbasist
Not if he goes with a supercharger...

To the OP, no matter what, to get the best out of power, you WILL need both.

Remember, headers are virtually useless without HFC or Test pipes. Cats are the most restrictive part of the exhaust system, or so i've heard. There's no point in allowing more flow through the headers if it gets clogged up in the stock cats.

I highly recommend the UpRev Osiris reflash if you don't want to go the TS route for the reasons you stated.

.
I also thought the mid pipe is on the sedans are restrictive too. Especially the 03 to 04's midpipe.
 
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Old Jul 31, 2007 | 01:23 PM
  #10  
jnkirk1974's Avatar
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Fastest G35 In Rockwall
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From: Rockwall, Texas (Near Dallas)
I already have Crawford cats on my car, so the stock cats are gone.

Even though it's in my signature, I'll post what I already have....

Pop charger, Z-Tube, 1/2" Motordyne Spacer, Crawford Cats and Borla exhaust.
 
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