OPTIONAL QUIET TUNING MUFFLER-TAILPIPE INFORMATION

VEHICLES AFFECTED: 1985-86 'STE' Models

New "Optional Quiet Tuning" muffler-tailpipe assemblies are now available in addition to "Standard Tuning" assemblies for service usage on 1985-86 "A" Cars with RPO Y88 (STE Package).

The parts required for installation of the "Optional Quiet Tuning" muffler-tailpipe assemblies are noted below by model year:

1985 DESCRIPTION QUANTITY PART NUMBER ----------------- -------- ----------- Muffler-Tailpipe Assembly 1 10054541 (Optional Quiet Tuning) Exhaust (Intermediate) Pipe 1 25527240 Clamp Assembly 2 15595048 Exhaust Pipe Hanger Assembly 1 25524620

1986 DESCRIPTION QUANTITY PART NUMBER ---------------- -------- ----------- Muffler-Tailpipe Assembly 1 10054541 (Optional Quiet Tuning) Clamp Assembly 1 1261589

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.