AP Exhaust 700488 Exhaust Muffler

AP Exhaust 700488 Muffler Overview

The AP Exhaust 700488 exhaust muffler is designed for reliable performance and durability in heavy-duty Chevrolet and GMC trucks. Engineered to meet OE comparable sound levels, this muffler suits various Sierra and Silverado 2500 and 3500 models, providing effective exhaust flow and noise reduction.

• Constructed from aluminized steel for corrosion resistance
• Oval-shaped baffled muffler with BB configuration
• Body dimensions: 24" length, 11.5" width, 8.5" height
• Inlet diameter: 3" with dual pipe inlets on left upper side
• Single 3.5" outlet pipe located on left lower and right lower positions
• Overall length of 28.25" for precise fitment
• Compatible with Chevrolet and GMC Sierra 2500, 2500 HD, 3500, 3500 Classic, Silverado 2500, 2500 HD, 3500, and 3500 Classic

Detailed Product Description

The AP Exhaust 700488 muffler features a durable aluminized steel body designed to withstand the rigors of heavy-duty truck use. Its oval shape and baffled BB configuration help maintain optimal exhaust flow while reducing noise to levels comparable with original equipment. The muffler includes two 3" pipe inlets positioned on the left upper side, allowing for efficient exhaust gas entry, and a single 3.5" outlet pipe located on the left lower and right lower sides for smooth exhaust exit. With an overall length of 28.25 inches, this muffler is engineered to fit specific Chevrolet and GMC heavy-duty truck models without modification.

Compatible Vehicles and Applications

• Chevrolet Sierra 2500 and 2500 HD
• Chevrolet Sierra 3500 and 3500 Classic
• Chevrolet Silverado 2500 and 2500 HD
• Chevrolet Silverado 3500 and 3500 Classic
• GMC Sierra 2500 and 2500 HD
• GMC Sierra 3500 and 3500 Classic
• GMC Silverado 2500 and 2500 HD
• GMC Silverado 3500 and 3500 Classic

Common Issues Addressed by This Muffler

• Excessive exhaust noise due to worn or damaged muffler
• Corrosion and rust compromising muffler integrity
• Reduced exhaust flow affecting engine performance
• Leaks causing exhaust fumes inside the vehicle cabin
• Non-OE sound levels impacting driving comfort

Installation Notes and Tips

Ensure the vehicle is securely lifted and cooled before beginning installation. The AP Exhaust 700488 muffler is designed for direct replacement on compatible Chevrolet and GMC Sierra and Silverado 2500/3500 models. Verify inlet and outlet pipe diameters and locations match your vehicle’s exhaust system. Professional installation is recommended to maintain proper exhaust alignment and prevent leaks.

Quality Assurance and Warranty

Manufactured by AP Exhaust, part number 700488 meets industry standards for durability and performance. The aluminized steel construction offers enhanced corrosion resistance suitable for heavy-duty applications. Warranty details should be confirmed with the manufacturer or authorized distributor.