No amendment or waiver of any provision of this Agreement, and no consent to any departure by any Person from the terms hereof, shall in any event be effective unless it is in writing and signed by the Floor Plan Agent and the Formula Revolver Agent. In no event shall the consent of any Obligor be required in connection with any amendment or other modification of this Agreement; provided , however , that no amendment or modification of this Agreement that increases any obligation of any Obligor shall be effective against such Obligor unless such amendment or modification is in writing and signed by such Obligor.