Couldn't choose between ARK or NGM springs. I heard few people's experience on the forum with NGM and understand its %18 stiffer than stock but is there anyone with ARK that would pitch in. The price of the springs isn't a factor, I know NGM's springs are cheaper. I'm trying to find which springs or closest to stock. On my previous car I lowered the car with a set of Eibach and it was too rough driving here in MA.