I have the 6MT and the suspension is nice. I do, however, experience more body roll than in my coupe (yes I understand why). If I were too add 350Evo sway bars, would this help? I do not want to lower the car. I enjoy the extra ground clearance I have now over my 2003 coupe.

 

yeah, any decent aftermarket sway bar will stiffen up the roll. Better to get a matched front rear set though. Does the G35C not come with a rear sway bar?

 

Yes.

Though I will argue that a yaw sensor will detect the same amount of roll in the end. It's just that the 03 Z's shocks have a lot of compression dampning and will resist roll on turn in whereas the G will allow the roll to happen sooner, not to be confused with a Gcoupe without the sport suspension or a Z with the revised 04 suspension built after 10/31/03.