Shock Question

DTMRacing said

The non adjustable Hotchkis shocks come tuned for the chassis and offer much better chassis control that the Bilstiens. We swapped all of our cars for the Foxs and don't even bother offering the Bilstiens to customers anymore.
https://www.youtube.com/watch?v=E3q5RCsWwYw

Click to expand...

Just from a curiosity stand point how do they come tuned to the chassis? They use the same part number for the A, B, & E body which does make sense from a physical fit stand point(As bilstein does the same) but the A B & E bodies are all different wheel bases, weight distribution and can have multiple different drivetrain options.

This is just food for thought and I feel would be good for discussion