AP Exhaust 700020 Exhaust Muffler

AP Exhaust 700020 Muffler Overview

AP Exhaust 700020 is a direct-fit exhaust muffler built for select Chevrolet, GMC, Isuzu, Dodge, and Oldsmobile applications. It uses an oval, baffled design with aluminized steel construction and OE-comparable sound level for a factory-style exhaust tone.

• Part number: 700020
• Brand: AP Exhaust
• Series: MSL
• Oval muffler body with baffled internal design
• Aluminized steel body material
• Inlet: 2.5 in. inside diameter, pipe type, right center location
• Outlet: 2.25 in. inside diameter, pipe type, center location
• Overall length: 23 in.; body length: 19 in.
• OE comparable sound level
• Direct-fit replacement for select S10, Sonoma, Hombre, S10 Blazer, S15 Jimmy, Bravada, Dakota, and S15 applications

Fitment and Application Details

This AP Exhaust muffler is built for direct replacement use on vehicles that call for the MSL/Maximum muffler configuration. It is listed for 1988-2004 Chevrolet S10 and S10 Blazer, 1991-2004 GMC Sonoma, 1988-1991 GMC S15 Jimmy, 1988-1990 GMC S15, 1991 Oldsmobile Bravada, 1990 Dodge Dakota with converter, and 1998-2000 Isuzu Hombre with sport exhaust. For shoppers searching for a Chevrolet S10 muffler replacement or a GMC Sonoma exhaust muffler, AP Exhaust 700020 matches the documented fitment data for those applications.

The MSL series is positioned as a direct-fit muffler solution for vehicles that need a factory-style exhaust note without a tunable design. AP Exhaust 700020 also cross-references Walker 21357 for the same application.

Key Features

• Direct-fit exhaust muffler for select compact trucks and SUVs
• Baffled muffler type for OE-style sound control
• Aluminized steel construction for everyday exhaust service
• Oval body shape for underbody packaging
• Single inlet and single outlet pipe layout
• Right-center inlet and center outlet configuration

What This Muffler Helps Address

• Worn or rusted factory muffler replacement
• Exhaust noise increase from a leaking or damaged muffler
• Loss of factory-style exhaust tone on S10 and Sonoma trucks
• Fitment issues when replacing a direct-fit MSL/Maximum muffler
• Corrosion-related exhaust service on aluminized-steel systems

Installation Notes and Tips

Verify inlet and outlet sizing before installation: 2.5-inch inlet and 2.25-inch outlet. Confirm the vehicle configuration listed in the fitment data, especially Crew-Cab/Short Bed, Short Bed, and sport exhaust notes where shown. Because this muffler is not tunable and does not include a heat shield, match the existing exhaust routing and mounting layout before final installation. For best results, inspect adjoining pipes, clamps, and hangers for wear during muffler replacement.

Quality Assurance

AP Exhaust 700020 is a regular-grade muffler from the MSL series, built with aluminized steel and an OE-comparable sound profile for direct replacement use on the listed vehicles. Its documented fitment and factory-style configuration make it a practical choice for restoring exhaust function on compatible Chevrolet S10, GMC Sonoma, and related applications.