I'v seen palces where they say 151, 155, 160, 171.

Anotehr friend said with the right wiring or gear changing they could do about 180.

i sjut wanna know. Fastest i'v been with my dad in ours is 130, and i know it can go faster.

Speed governed to 156mph, unless you have a reflashed ECU.

How you get the ECU?

You can reflash or use a piggyback. More info here...

Custom flash for G35/350Z oem ECU:

Technosquare, Inc.
http://www.technosquareinc.com

'Piggyback' ECU solutions:

GReddy E-Manage
http://www.greddy.com

Unichip
http://www.unichip.us

156 *governed*

plugged in the gear ratios into a calculator, and it said that in terms of gearing the car can top out at 172. i have only seen 140, but the 156 limiter sounds right.

I have to say that the infinity g35 is one of the fastest cars I have ever driven. I have rented one from your local hertz rental agency and received a speeding ticket 75 in a 55. What the cop didnt know is that about 20 miles up the road I was running the hwy from Atlanta at about 135. Sucker!!!!! Ive found my next car.

I took my automatic to 140 I believe was too scared to look down

I've gotten my G up to 135 with 5 "big" people in the car and some luggage. Think the car could've gone faster if I went tiptronic instead of straight manual, but didn't want to hurt my baby :-)

180mph!? that's 288km/h!! i don't think thats possible with stock G35

Maybe not stock, but look at the possibilities.

new tires, reflashed ECU, Turbo?

Hell, sombody could have some fun.

We broke 130, we hit about 145, then she started slowing down.

Thank you desselet roads in South Dakota LOL