Independent Dyno Testers Needed!
Thread Starter
MOTORDYNE-MY350Z SPONSOR
iTrader: (53)
Joined: Jul 2004
Posts: 4,399
Likes: 9
From: L.A. California
Keep in mind that the Harakiri single muffler is also interchangeable with (or part of) the dual system too.
Exact same look and parts interchangeable among the single and dual.
More pics will follow a little later but its not my ride so I don't know all the mods on the car.
It could probably use a reduction in spark timing by 4-5 degrees but the car is otherwise in perfect condition.
The sounds i fantastic, i couldn't be happier. Nice tone, NO RASP at all , very deep and mildly aggresive. I may try to wake it up slightly with the straightpipe instead of the resonator at the end of my XYZ pipe.
Last edited by terrasmak; Dec 17, 2008 at 02:07 AM.
Thread Starter
MOTORDYNE-MY350Z SPONSOR
iTrader: (53)
Joined: Jul 2004
Posts: 4,399
Likes: 9
From: L.A. California
Here you go Sir!
This is Unluckycharms dyno comparison of the Fast Intentions Intimidator and the Motordyne Gamma Dual Exhaust on a 2007 6MT G35C.
Reference: http://g35driver.com/forums/intake-e...-setups-7.html
DYNO DATA:
Fast Intentions - Fine dash line
Motordyne - Heavy dash line
RUN 1
RUN 2
RUN 3
RUN 4
RUN 5
RUN 6
Fast Intentions Dual Sound Clip
http://s352.photobucket.com/albums/r...FIG35Sound.flv
Motordyne Gamma Dual Sound Clip
http://s352.photobucket.com/albums/r...MDG35Sound.flv
This is Unluckycharms dyno comparison of the Fast Intentions Intimidator and the Motordyne Gamma Dual Exhaust on a 2007 6MT G35C.
Reference: http://g35driver.com/forums/intake-e...-setups-7.html
DYNO DATA:
Fast Intentions - Fine dash line
Motordyne - Heavy dash line
RUN 1
RUN 2
RUN 3
RUN 4
RUN 5
RUN 6
Fast Intentions Dual Sound Clip
http://s352.photobucket.com/albums/r...FIG35Sound.flv
Motordyne Gamma Dual Sound Clip
http://s352.photobucket.com/albums/r...MDG35Sound.flv
Nice gains over another aftermarket exhaust. 
Here is a list of his modifications for those that are lazy to click on the G35driver link
Here is a list of his modifications for those that are lazy to click on the G35driver link
Originally Posted by unluckycharms
The Detailed Write-up:
Intake/Exhaust set-up (tint and suspension excluded):
-Stillen intake
-Z tube
-Motordyne 5/16" spacer
-Motordyne MREV2 lower plenum
Previous Exhaust: Fast Intentions Intimidator Exhaust
New Exhaust: Motordyne Gamma Dual
Reason for switching: Modding ADD
Build Quality: Both exhaust systems are top notch in build quality, and fit up quite easily. The Motordyne favors V-band clamps where possible, while the Fast Intentions uses flanges. The clamps do allow rotation to be factored into the adjustability, but again, I had no issues with the fitment of either. All the welds appeared solid and clean.
The Looks: The exhaust looks very similar to the HKS exhaust, sans the resonating chambers on each muffler. The tips stick out from the car noticeably more than the FI exhaust, and do allow for adjustability. I will see if i can get the tips tucked a little further into the bumper, like my FI was.
The Sound: This exhaust sounds surprisingly similar to the Fast Intention, but a little bit louder, and with some mild high pitch overtones. I'm getting reasonable cabin drone from about 2000-2800 rpm, which I'm hoping will go away once the exhaust is broken in. I should have over 1000 miles on it by next weekend, so I'll try to report back on this item. If the drone doesn't go away, the next plan of attack is to swap in a resonator behind the Y-pipe.
The Performance: Before we slapped the car back on the dyno, we took a quick spin around to make sure all was well. I noticed that the car was a little smoother coming off idle, but otherwise performed very similarly to the FI. The dyno plots (below) confirmed that I had gained back some low-end torque (likely due to the Y-pipe configuration), and made very slight gains over the majority of the powerband. After driving the car for a couple days, the torque is still noticeable, but I'd say the butt dyno reads about the same everywhere else as the FI exhaust.
Dyno Type: Dynapack
# of Runs: 6 pulls with each system (4th gear)
Ambient temperature for FI dyno: 59 degrees
Ambient temperature for Motordyne dyno: 57 degrees
Intake/Exhaust set-up (tint and suspension excluded):
-Stillen intake
-Z tube
-Motordyne 5/16" spacer
-Motordyne MREV2 lower plenum
Previous Exhaust: Fast Intentions Intimidator Exhaust
New Exhaust: Motordyne Gamma Dual
Reason for switching: Modding ADD
Build Quality: Both exhaust systems are top notch in build quality, and fit up quite easily. The Motordyne favors V-band clamps where possible, while the Fast Intentions uses flanges. The clamps do allow rotation to be factored into the adjustability, but again, I had no issues with the fitment of either. All the welds appeared solid and clean.
The Looks: The exhaust looks very similar to the HKS exhaust, sans the resonating chambers on each muffler. The tips stick out from the car noticeably more than the FI exhaust, and do allow for adjustability. I will see if i can get the tips tucked a little further into the bumper, like my FI was.
The Sound: This exhaust sounds surprisingly similar to the Fast Intention, but a little bit louder, and with some mild high pitch overtones. I'm getting reasonable cabin drone from about 2000-2800 rpm, which I'm hoping will go away once the exhaust is broken in. I should have over 1000 miles on it by next weekend, so I'll try to report back on this item. If the drone doesn't go away, the next plan of attack is to swap in a resonator behind the Y-pipe.
The Performance: Before we slapped the car back on the dyno, we took a quick spin around to make sure all was well. I noticed that the car was a little smoother coming off idle, but otherwise performed very similarly to the FI. The dyno plots (below) confirmed that I had gained back some low-end torque (likely due to the Y-pipe configuration), and made very slight gains over the majority of the powerband. After driving the car for a couple days, the torque is still noticeable, but I'd say the butt dyno reads about the same everywhere else as the FI exhaust.
Dyno Type: Dynapack
# of Runs: 6 pulls with each system (4th gear)
Ambient temperature for FI dyno: 59 degrees
Ambient temperature for Motordyne dyno: 57 degrees
