004-2006 Jeep Wrangler/Rubicon (TJ) Removal of Stock System: 1. Apply a penetrating lubricant liberally to all exhaust fasteners, hangers and rubber insulators. Figure 1 2. Cut the exhaust pipe after the muffler to be able to remove it from the vehicle. Refer to Figure 1. 3. Remove the tail section of the exhaust by removing it from the rubber isolators. Refer to Figure 2. Figure 2 4. Remove the hardware from the flange and remove the muffler. Refer to Figure 3.