AP Exhaust 700087 Exhaust Muffler - Front

AP Exhaust 700087 Muffler Overview

AP Exhaust 700087 is an oval, baffled exhaust muffler built with aluminized steel for direct-fit replacement use on select GM full-size cars and chassis applications. It delivers OE-comparable sound levels and uses a 2.5-inch pipe inlet and 2.5-inch pipe outlet for a factory-style exhaust connection.

Compatible with Buick Roadmaster, Chevrolet Caprice, Cadillac Fleetwood, Cadillac Brougham, Oldsmobile Custom Cruiser, Pontiac Parisienne, Chevrolet Commercial Chassis, and Chevrolet Impala applications listed below, AP Exhaust 700087 supports direct-fit service on front-position exhaust layouts where specified.

Key Features

• Part number: 700087
• AP Exhaust MSL series muffler
• Oval baffled muffler design
• Aluminized steel body for corrosion resistance in standard exhaust service
• 2.5-inch inlet inside diameter, pipe type
• 2.5-inch outlet inside diameter, pipe type
• Inlet location: right center
• Outlet location: left center
• Overall length: 22.5 inches
• OE comparable sound level

Detailed Description

AP Exhaust 700087 is a regular-grade exhaust muffler from the MSL series, shaped as an oval unit with a baffled internal design. The aluminized steel body measures 19 inches long, 10.5 inches wide, and 4.06 inches high, with an overall length of 22.5 inches. Its right-center inlet and left-center outlet layout supports direct-fit exhaust routing on the listed front-position applications. This part number 700087 is a practical choice for restoring factory-style exhaust tone on vehicles such as the Chevrolet Caprice and Buick Roadmaster.

This muffler is listed with OE comparable sound level and is not tunable. It does not include an attached heat shield.

Vehicle Fitment

• Fits 1991-1993 Buick Roadmaster, front. DIRECT FIT MSL/MAXIMUM Muffler.
• Fits 1993 Cadillac Fleetwood, N/A. DIRECT FIT MSL/MAXIMUM Muffler.
• Fits 1985-1993 Chevrolet Caprice, front. DIRECT FIT MSL/MAXIMUM Muffler.
• Fits 1992-1993 Chevrolet Caprice, front. DIRECT FIT MSL/MAXIMUM Muffler; Police Car.
• Fits 1993 Chevrolet Caprice, front. DIRECT FIT MSL/MAXIMUM Muffler; except Police Car.
• Fits 1990-1992 Cadillac Brougham, front. DIRECT FIT MSL/MAXIMUM Muffler.
• Fits 1992 Chevrolet Commercial Chassis, front. DIRECT FIT MSL/MAXIMUM Muffler; Police Car.
• Fits 1991-1992 Oldsmobile Custom Cruiser, front. DIRECT FIT MSL/MAXIMUM Muffler.
• Fits 1985-1986 Chevrolet Caprice, N/A. DIRECT FIT MSL/MAXIMUM Muffler.
• Fits 1985-1986 Pontiac Parisienne, front. DIRECT FIT MSL/MAXIMUM Muffler; with Converter.
• Fits 1985 Chevrolet Impala, front. DIRECT FIT MSL/MAXIMUM Muffler.

What This Muffler Helps Address

• Exhaust noise from a worn or damaged muffler
• Factory-style sound restoration on GM full-size rear-wheel-drive platforms
• Corrosion-related muffler replacement needs
• Fitment issues when replacing a direct-fit front exhaust muffler
• Exhaust flow restriction caused by an aging internal baffled muffler

Installation Notes and Tips

Verify inlet and outlet orientation before installation: AP Exhaust 700087 uses a right-center inlet and left-center outlet with 2.5-inch pipe connections. Confirm the vehicle’s exhaust layout, especially on police, commercial chassis, and converter-equipped applications, to match the listed fitment notes. Professional exhaust installation is recommended to ensure proper alignment and sealing.

Quality Assurance

AP Exhaust 700087 is built as a direct-fit replacement muffler in the MSL series using aluminized steel construction and OE comparable sound characteristics. No warranty information was provided in the product data.