6.0 & 6.2 LITER. Front insulator. A component that insulates or isolates the Exhaust System Hanger from another component or it's mounting surface. Exhaust System Part that holds the Exhaust parts to the vehicle. Part serviced only with Muffler and Pipe. Exhaust Muff HNGR (Isolator). AND. AND Amplifier. Center. Exhaust System. Intermed. Tail bracket. W/t. Included with: Muffler & Pipe, Muffler and Pipe.