004-2008 FORD F150 Removal of Stock System: 1. Apply a penetrating lubricant liberally to all exhaust fasteners, hangers and rubber insulators. Figure 1 2. Loosen the clamp located behind the “Y” pipe. Refer to Figure 1. 3. Loosen the clamp located in front of the muffler. Refer to Figure 2. 4. 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. Refer to Figure 3.