03-05 Chev./GMC Silverado/Sierra CC/SB 6.0L “COOL DUALS”™ Removal of stock system: 1. Measure and mark the pipes 13" from the front of the muffler. The pipes now need to be cut square where the pipes were marked. 2. Apply a penetrating lubricant liberally to all exhaust fasteners, hangers and rubber insulators. 3. Remove the hangers from the rubber insulators and remove the exhaust from the vehicle. If a hoist or hydraulic lift is not being used the tail pipe may need to be cut to clear the rear axle.