Fitment Information M37 3.7L 11-13 M56 5.6L 11-12 Q70 3.5L Hybrid 14-15 Q70 3.7L & 5.6L 14-18 Specs & Features Dual Performance Axle-Back Exhaust System in Polished Stainless Steel with TIG Welding with 114mm Bevel Edge Tips Fits M37 3.7L 11-13 / M56 5.6L 11-12 / Q70 3.5L Hybrid 14-15 / Q70 3.7L & 5.6L 14-18 New Gaskets Included / Very Nice Deep Tone Sound Under 97db sound level / Not C.A.R.B Exempt for California Customers Fitment Guaranteed Includes new bolts and gaskets for easy install Special note for exhaust installation on the rear section exhaust installation, if you tighten the nuts&bolts on the exhaust on one side and move on to the other side the exhaust on left and right will not line up evenly and will be off in position. Please tighten the nuts&bolts in rotation, right -> left -> right -> left and adjust the position of exhaust & exhaust hangers before tightening both sides exhaust nuts & bolts. For best results have a helper to stand behind the rear of your car to visually direct you to perfect installation. Top Speed Pro 1 has been known for its popular exhaust systems due to the unique sound, excellent fitment, high performance and awesome looks.  These exhaust systems are designed to provide the smoothest exhaust flow from their enlarged mandrel bend piping which increases horsepower and torque.  Each exhaust features a unique Top Speed muffler to provide a distinct modified sound and quality flanges and hangers for great fitment.