I currently have a 2005 g35 coupe with the sport suspension. My problem is that I think the suspension is too rough for NYC roads. Feels like my car is going to fall apart when I hit bumps on the freeway or potholes. Even the little bumps feels like its doing some damage.
My question is there a softer suspension setup besides going to the non sport suspension? I think the non sport suspension is too soft but I actually only rode on the loaners (g35 sedan). Is there anything in between the sport and non sport suspension? I'd really like this car to feel more refined and solid.

any suggestion would be appreciated. I researched and it seems like the Dpecs would be a good option. anyone else think otherwise? thanks!