2009G37Bandit

4.083 are GEARS, but I have no experience in THESE cars with a higher gear. My Vette I increased my AUTO from 3.15, to 3.42, was way Better. Also, for automatics, has anyone ever got a torque converter on an infiniti?

Is your G37 an Auto or Manual?

Also, I know what they do on a Corvette, mines been tuned many times (20012 C5). BUT, What exactly are the parameters a tuner is changing to get these gains? I mean, how hard is it to tune these cars?

What are Speed Flaps? Someone said you can program these to remain open?

OK, what are they tuning on our cars? Here is a list. Please ADD to this, as I am curious to what the heck they do for 4500. Adjust Air Fuel Ratio, Can thet remove torqe managment (could on the Vett), raise rev limiter, raise shift points? What else?

seymore4

iTrader: (7)

With an Osiris tune you can completely reprogram

fuel target and compensation
timing
speed and rev limiters
electronic throttle
torque management (to manipulate how the TQ locks up)
DTC
idle
fan engagement point
etc etc etc

plus you get the ability to switch between 5 independent maps in the ecu using the cruise control buttons, you can have launch control, valet, anti theft, economy, etc

Feel free to PM me with any specific questions

Rochester

iTrader: (9)

Wait! What? There are aftermarket options in the rear diff on the 6MT?

Researching... Oh-h-h-h.

eksigned

iTrader: (1)

seymore got it haha
the throttle flaps are the throttle body flaps that sit on the intake manifold. at WOT they don't open all the way, per factory restrictions.

the 4.083 gears are off the pathfinder. they are indeed a nice performance upgrade