marshun

use the old springs.

yucatontom

It depends on the mileage and history of the car. It it's high mileage or if you have bought used and don't know how it was driven - I would go ahead and replace the springs. It will not increase the labor costs. I guess it also depends on your plans for the car. If you plan on keeping the car and want the best - go with new springs along with the Bilstein B6 HD.