The downside is there really isn’t a high end option for these cars, that’s off the shelf. I was just in this situation, and tried getting Bilstein and ohlins to make me something as they are somewhat local. Neither wanted to. Also reached out to JRZ, who said they could and ghosted.
Left me stuck with the Taiwanese three. Feal,BC,Ksport. I went with BC, because I found a shop who can custom valve them with Bilstein guts.
My stock BC setup is not without flaws. You have to run them incredibly soft, and the springs are not matched well to the stock valving. I would assume the valving is the same for the majority of the coilovers they make. I don’t have high expectations of them lasting over a year of street use.
I’ve read time after time, the AGX and H&R combo is trash. That those springs will blow out the AGX quickly. Who knows if that’s true, but it’s probably a better ride over the BC.
I’ll either go through with having mine custom valved at some point, or fully commit to someone redoing some of the suspension geo and fitting a custom coilover setup in the car.
Hate to break it to ya, but there just isn’t going to be a smooth ride on coilovers with what’s available for these cars.