[drivemusicnow]

I'm sorry but for 3K you could pay a suspension shop to make coilovers using a custom bilstein, or Koni shocks valved specifically for your car and application, using spring rates that are also custom to your car and application. Suspension shops have the ability (and tools) to solve the equation that is suspension. In the end a "pre-made engineered coilover" is really just a coilover from a similar app that has been adjusted to work in this one, and then produced. Just do that at a shop rather than deal with corporate premiums.

No reason to pay more for a part that won't be as good as things that are already available.