Nothing in this paragraph prohibits a dealer, prospective dealer or owner of an interest in a dealership franchise or facility from voluntarily entering into such an agreement for other consideration. However, a provision contained in an agreement which is not voluntarily entered into by a dealer, prospective dealer or owner of an interest in a dealership franchise or facility on or after the effective date of this paragraph that is inconsistent with the provisions of this section shall be a violation of this chapter.
63 P.S. § 818.310