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Anyone that is still having fiberglass problems with their INJEN exhaust please post.

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Old May 25, 2005 | 08:34 PM
  #21  
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G352NV
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Lol go for it! I guess 10k isnt long enough for break in!!! Just hope you have a light colored car! Its very that they will respond to you but I and others can get NO reply! My emails to them are just asking for answers, I dont demand anything!
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Old May 25, 2005 | 09:17 PM
  #22  
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Its a Lemans Sunset. And Im also installing Kinetics High Flow cats along with the exhaust so hopefully that wont worsen it if it does happen.

Later
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Old May 25, 2005 | 11:00 PM
  #23  
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INJEN'S ANSWER>
As for the silencers, what you need understand that the 350z or any car in
that matter, relay on a certain amount of back pressure and/or restrictions.
This is quoted from our R&D dept... "Not all engines need free flowing
exhaust pressure. They need the right combination of free flow with the
right amount of restrictions. For example most people think that
turbocharged vehicles need the biggest exhaust piping you can squeeze in the
car. This is not true due to the motor not being in boost 100% of the time.
It's all about combination...if there is a restrictor there, then it was put
there for a reason...to control exhaust flow to achieve the best possible
air flow for that specific car.
Here they are just perpetuating the "backpresure" myth. There is no science behind it, just trial and error system design that resulted in incorrect conclusions based on results.

The line about it being in there for a reason and controlling flow, the reason is noise, not flow.

Remember when it come to intake and exhaust systems it not about max air
flow...it's about combination, combination, combination!!!"
Well really it should be about 2.2 CFM per horse but whatever. Is each side of the Injen system flowing around 320 CFM, anyone have a flow bench?

Also, we produce products intended to be used in a legal format and hence
abiding to the California Decibel requirement. After our first initial
release of the 350z angled tip exhaust with removable silencers, we listened
to all the 350z owners whom suggested changes to be made to the system due
to the awkwardness of the silencers and overall look. Therefore, the release
of the newly designed straight tips with built in silencers were made.
So are they form over function. Here it sounds like the silencers stuffed inside to make the system look better.

You
may have negated the fact that we in no way hide the fact that there is the
apparent addition of the built in silencer and in fact is also one of our
many key points of the system.

Not to mention, the 350z exhaust system along
with all of our cat-back systems are dyno proven pieces that have been tuned
accordingly as a complete system with all components added. So your so
called "[Dirty Little Secret]" is not really a secret now is it?
Anyone know where I can find these many key points or a mention of built in silencers?

We do not take offense to your posting, but please be fully aware of what
you are stating and have it backed by information that is relevant and not
just a mere "findings." If you look at any exhaust company on the market,
from a straight flow design or a chambered design, everyone differs and has
engineered their system to a specific design for a reason. Ours, as in the
aforementioned, were to offer a great upgrade on the existing stock
component- adhering to legal requirements and to give you an added
performance gain. I hope this information will shed some more light on the
matter.
What do I have other than findings from investigation. I posted what I found and what effects I thought it had. I believe it better describes not only the fiberglass issue but also why it is so loud at low RPM.

What I do know is Injen has an issue with fiberglass blowing out of their systems and other than a "beak in period" excuse, they don't seem to adequately explain any of it.


Best,

Duy Le
Sales/Marketing
Injen Technology Co., Ltd.
(909) 839.0706 x201
(909) 839.0427 fax
www.injen.com
AIM: InjenDLE



MY CONCLUSION... I HAVE TO WAIT AND SEE WHEN I INSTALL IT, BUT I STILL THINK ITS A GOOD SYSTEM
LATER,
Charles
P.S. I ANSWERED HIM CLARIFYING THAT I DIDNT POST THE ORIGINAL POSTS ABOUT THE PROBLEM SINCE HE THOUGHT I DID IT.
No I think he simply copied and pasted the response he wrote to me.
I still think Injen is the best looking and sounding system,

Oh well

Chris
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Old May 26, 2005 | 11:49 AM
  #24  
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From: Mexico City
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what happens when the fiberglass runs out? I assume it can happen right? So maybe after driving it a while It wont have any more stuff to shoot out.
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