Got my car tuned with UpRev

Z eliminator

I bought a whole diff. from a nissan mechanic from a g 35 / he did all the work and changed out the gears, he told me that the parts cost around 800 to 850 dollars.
I can not wait to see what the 4.08 will do with my GTM SC.
I got the A/F from the Cobb. I was told by Denny that they are not acurate depending on what A/F #'s that you are getting , They could read too high on the top end and at the bottom end the reading may be ead to high. "this is what i have read on the forum. If any body has compared the cobb readings with actual A/F readings from a tail pipe or external wide band i would be very interested to see how they compare."
My car does not ping but man does it go. I have added more fuel to the curve now, i dropped the #'s eg. from 87 to 86. ect. 77 to 76 I did this for the entire fuel curve. I have not dynoed the car with these changes Not sure how much of a change it will make.

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12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.