which engine/drivetrain?
Edit - I assume its the vehicle in your signature so I checked H&R catalog and the 25mm springs for Coupe and Sportback are different due to the difference in rear axle weights. This is confirmed by cross referencing the Eibach catalog for the same drop. I'm sure a VIN check with the OE catalog would also show a different spring between the 8T S5 (V6) Coupe and 8T S5 (V6) Sportback.
Coupe - 29061-1
Sportback - 29061-2