Fits 2012-2013 Mustang Boss 302 and Boss 302 Laguna Seca edition Gives a more aggressive looking stance as well as increased handling dynamics Lowers car approximately 15mm (0.6-inch) front and 35mm (1.375-inch) rear Includes Mustang jounce bumper kit M-5570-A May cause slightly harsher ride compared to stock springs Note: Some factory fasteners are one time use. Please reference a Ford service manual for reuse information and correct torque specifications. May require alignment after installation