Originally Posted by ******
They are too generic, looks like they took an universal kit, and made it fit an e9x, plus adjusting the rear is PITA
Can you elaborate little bit more? I am not sure what you are referring to.
The spring rate is calculated to support the weight of the car in this case E90/E92 ( we have different spring rate for M3s), while the strut handles the damping.
There isnt an universal kit for every car since the spring rate, lower mount setup, and even the suspension setup is all different.
Rear of the E90 | E92 is a little pain since the spring and the strut is separate, usually it takes us 45mins-1 hr to adjust the backside.
Good thing is once the coils sits, go back to it once and you never have to go back to it again.