Which brand and model makes the mildest drop(spring) for 370Z??

kenchan

not sure on this car, but ive tried s-techs and h-techs on my G35C like 8yrs ago and hated the ride. too soft and wiggly tailed.

ended up with eibachs + D-Spec dampers, but today, i would recommend you do the Swifts. those springs match stock dampers very well.

also, im not sure if it's really worth it to do such a mild drop like 0.5" or watnot.. progressive rate springs (usually found on lowering springs) make the car too sloppy unless you get swaybars and/or dampers. you have to do so much compensation that it's better just to do it right the first time and run Swifts or something that is 'worth' the amount of work you put in.

otherwise, just leave your car stock height and get the right offset wheels, spacers, etc.

Juice14

I have sway bars and that doesn't help. The soft progressive spring is just not for performance, at least on this car. Also, the better the tires, the worse the suspension will feel.
Like I said, the car felt better with stock springs. BUT if you are only looking to lower and don't care for performance, the S tech is the way to go, the ride is great.