The bracket is designed to be fastened to the main unit with 2 x M4 bolts either at right angles, in-line or diagonally across the main unit.Mounting kit for Tow-Pro Elite;Mounts under the dash;2 x M4, 1 x M6 nut/bolts;Bracket can be bent if install requires;CARB EO Number: A-2020-112;California Residents: WARNING Redarc Tow-Pro Elite Mounting Kit - EBMK-001 The REDARC Tow-Pro Elite Mounting Kit simplifies the installation of the Tow-Pro Elite electric trailer brake controller main unit under the dash of a vehicle..