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

Exhaust to make low and mid-range power

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Old Feb 16, 2012 | 12:15 PM
  #31  
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Ah, no I bought my Gemini new. Haha, the box was just a little beat up. The gaskets all look good.
 
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Old May 5, 2012 | 06:19 PM
  #32  
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Figured I'd update this thread. Today I had the Invidia Gemini and ART pipes installed, and then a dyno tune with Osiris.

The baseline before the tune with MD 5/16" spacer, MREV 2, K&N drop-in, z-tube, ART v2 pipes, and Invidia Gemini was 270.7 rwhp. With the Osiris tune it put down 300.2 rwhp. I'll post up the printouts in a day or two.

I'm really happy with the results. The car drives really well, and the exhaust sounds good. It sounds really great on the highway, but a little louder than I would like between 2-3k around town.
 
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Old May 8, 2012 | 03:51 PM
  #33  
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Originally Posted by DiGil
Figured I'd update this thread. Today I had the Invidia Gemini and ART pipes installed, and then a dyno tune with Osiris.

The baseline before the tune with MD 5/16" spacer, MREV 2, K&N drop-in, z-tube, ART v2 pipes, and Invidia Gemini was 270.7 rwhp. With the Osiris tune it put down 300.2 rwhp. I'll post up the printouts in a day or two.

I'm really happy with the results. The car drives really well, and the exhaust sounds good. It sounds really great on the highway, but a little louder than I would like between 2-3k around town.
Thanks for the update. I'm new to the G game and from the research I've done so far, 300rwhp sounds pretty good for bolt ons and a tune. Quite the recipe
Looking forward to the printouts...
 
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Old May 8, 2012 | 08:18 PM
  #34  
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Here is the pre-tune baseline with the aforementioned mods. (Notice the printer didn't print a dot. I'm not making 2k hp, haha):



And here is the final run after the Osiris tune:



I couldn't be happier with how this turned out!
 
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Old May 8, 2012 | 08:32 PM
  #35  
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I'm having trouble believing you're really getting 300 HP to the wheels, especially without headers, cams, forced induction, and on a dyno that typically reads lower than dynojets.

Regardless, all that matters is how the car feels, not the numbers, so congrats.
 
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Old May 8, 2012 | 08:52 PM
  #36  
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Yeah, looks high, but the gain is what matters, the delta is impressive, you should *really* be able to feel this with your butt dyno!
 
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Old May 9, 2012 | 01:05 PM
  #37  
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That's it, the 30 HP gain from the tune is what really matters to me, and it is definitely a difference I can feel. I'd be interested in seeing what kind of numbers my car puts down on different dynos.
 
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Old May 9, 2012 | 02:18 PM
  #38  
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Wow thats really good man! DId you use the Osiris Tuner or the standard +etune?
 
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Old May 9, 2012 | 08:38 PM
  #39  
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Er, he was on a dyno, so, uprev tuned, he certainly didn't use an e-tune....
 
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Old May 20, 2012 | 08:13 PM
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may i ask where you ordered it from??? and did you post a video?
 
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Old May 20, 2012 | 08:22 PM
  #41  
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Cheapest price i found for Motordyne was customcarscentral.com
 
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Old May 20, 2012 | 10:33 PM
  #42  
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Originally Posted by DiGil
That's it, the 30 HP gain from the tune is what really matters to me, and it is definitely a difference I can feel. I'd be interested in seeing what kind of numbers my car puts down on different dynos.
Do a couple of pulls at Moore Automotive in Fairfax only $75 for 3 pulls with AFR. They use a dynojet .

Moores reads the same as RT Tunings dynojet for comparison, but all in all if you can feel a difference after the tune that's all that matters.
 
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Old May 20, 2012 | 11:21 PM
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Most of those parts will make gains before the tune as well, so it's not just 30.
 
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