^ I have revised z springs and ride quality is similar as with the OEM Sport springs. Its not harsh at all. Maybe something is broken on your car?

 

I have the sport suspension. Maybe that's why it's a bit stiff. The spacers did a good job of adding some stability. Body roll is very little now.

 

Idk, i have an x lol, it was pretty soft stock, added an NRG front strut bar and htechs and it feels close to stock, maybe a bit stiffer than stock. I had m45 19's before, car felt so damn stable, switched back to oem 17's and it feels like ****. I need coils and 18's. that would hit the spot with this car in terms of handling.

 

BB grounding wires. They really work!