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

2003 G35 Sedan Dual Exhaust

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  #31  
Old 08-02-2009, 04:01 AM
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Very nice.

I didn't like the slight smell of fuel in my car after this mod so yesterday I cut the spare tire well out of my car, welded a steel plate in its place and moved the box and my fuel system (surge tank and bosch 044 race pump) back under the car.
 
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  #32  
Old 08-02-2009, 01:53 PM
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great write-up djposephm! Very concise and intriguing.

Q45tech posted some very good reference material regarding exhaust (after cat) and its relation to back pressure and scavenging... I did a quick read and its very interesting, however I don’t know that it clearly indicates whether a system such as this would be advantageous or not so good...

I'd be curious to see a/f changes (if any) and to know whether it helped with scavenging... did you notice any difference in performance?
 
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  #33  
Old 08-02-2009, 02:36 PM
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Great write up...and I will say it looks and sounds very nice!!! Great work!!!
 
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  #34  
Old 08-02-2009, 02:41 PM
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Can you put the evap system in an airtight enclosed box, wouldn't that stop the smell from getting into the rest of the car?
 
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  #35  
Old 08-02-2009, 02:47 PM
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nicely done, i like the setup, i wouldnt mind custom fitting the dual hks...
 
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  #36  
Old 08-02-2009, 03:16 PM
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Originally Posted by LEON NYC
nicely done, i like the setup, i wouldnt mind custom fitting the dual hks...
You would most likely have to cut out your spare tire well to fit that exhaust. Also it would need to be extended.
 
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  #37  
Old 08-02-2009, 03:17 PM
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Originally Posted by itgogitrev
Is there a system like this on the coupes and 350Zs? Where is it located on them?
It's up higher in the quarter panel. Coupes are wider in the rear.
 
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  #38  
Old 08-02-2009, 06:06 PM
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I haven't noticed a gas smell, but I am going to be custom fitting a box around the evap canister and molding the carpeting to the box.
 
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  #39  
Old 08-02-2009, 09:49 PM
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Q50 Red Sport 400 RWD
Originally Posted by djosephm
next? well i am currently working on upgrading the brakes to 2006 brakes... after that i am pretty well done.
Very nice bro. I wish that Infiniti would have given all 2003 G sedans a true dual exhaust, full nismo aero kit and coupe 19s (b/c of the ultra hot offsets and they look great).

OP, any plans on either running a full nismo kit or painting the lowers?
 
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  #40  
Old 08-02-2009, 10:58 PM
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Nah, to me cost doesn't outweigh the benefit of a kit.
 
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  #41  
Old 08-02-2009, 11:16 PM
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Looks great. The one thing I would have done different is to use a single inlet/dual outlet muffler after the Megan Y-Pipe to give it a cleaner looks and quieter sound as pictured below.

Name: MUFFLERMIDSECTION.jpg Views: 1743 Size: 251.3 KB
 
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  #42  
Old 08-02-2009, 11:54 PM
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i would've liked a single muffler underneath, then out to the quad pipes. i like the look of quad pipes just not the mufflers right behind them.
 
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  #43  
Old 08-03-2009, 12:06 AM
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jealous? hehe
 
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  #44  
Old 08-03-2009, 12:16 AM
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^^^Me??? have you seen my car??? LOL
 
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  #45  
Old 08-03-2009, 12:59 AM
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Nope haven't seen it, thanks for the input though. It was more of a joke than anything
 
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