Removal of Stock System: 1. Apply a penetrating lubricant liberally to all exhaust fasteners, hangers and rubber insulators. 2. Remove the bolts from the rear flange of the y-pipe. Do not discard the bolts as they will be reused for the installation. 3. Remove the hangers from the rubber isolators and remove the stock muffler and tail pipe. Retain the gasket from the y-pipe for reuse. Installation of MBRP Inc. Performance Exhaust: Figure 1 1.