AP Exhaust 700420 Exhaust Muffler

AP Exhaust 700420 Muffler Overview

AP Exhaust 700420 is a direct-fit exhaust muffler for select Chevrolet Colorado, GMC Canyon, and Isuzu i-Series trucks. It uses a baffled Z configuration with OE-comparable sound level to replace the factory muffler on applications that originally used a welded exhaust assembly.

Built from aluminized steel with an oval body, this muffler is sized for 2.5-inch inlet and outlet connections and is intended for the 2004-2012 Chevrolet Colorado and GMC Canyon, plus 2006-2008 Isuzu i-280, i-350, i-290, and i-370 applications. The AP Exhaust 700420 is a practical OE-style replacement when restoring exhaust function and factory-like sound.

Key Features

• Direct-fit exhaust muffler for select mid-size trucks
• 2.5-inch inlet and 2.5-inch outlet pipe connections
• Baffled Z muffler configuration
• OE comparable sound level
• Oval aluminized steel body for everyday corrosion resistance
• Left upper inlet and left lower outlet layout
• AP Exhaust 700420 part number for easy identification

Detailed Description

This AP Exhaust muffler is engineered around the original exhaust layout used on select Chevrolet Colorado, GMC Canyon, and Isuzu i-Series models. The oval aluminized steel body measures 18 inches long, 9 inches wide, and 7 inches high, with an overall length of 22 inches. Its baffled construction is aimed at maintaining a factory-style exhaust note rather than an aggressive tone.

Use AP Exhaust 700420 when you need a replacement muffler for 2004-2012 Chevrolet Colorado, 2004-2012 GMC Canyon, 2006 Isuzu i-280, 2006 Isuzu i-350, 2007-2008 Isuzu i-290, or 2007-2008 Isuzu i-370. This part number is also a useful reference when searching for an OE-style exhaust muffler for these welded-system applications.

What It Helps Address

• Rust-through or internal failure in the original muffler
• Exhaust noise that has become louder than factory levels
• Restricted exhaust flow caused by a damaged muffler core
• Replacement needs on welded OE exhaust assemblies
• Restoration of a factory-style exhaust tone on Colorado, Canyon, and Isuzu truck applications

Installation Notes and Tips

Verify inlet and outlet orientation before installation: this muffler uses a left upper inlet and left lower outlet with 2.5-inch pipe connections. Because the OE system was a welded assembly on the listed vehicles, related exhaust components noted in the vehicle catalog should be inspected and replaced as needed during service.

Confirm vehicle year, make, model, and exhaust layout before ordering. AP Exhaust 700420 is listed for direct-fit use on the specified applications and should be matched to the original system configuration for proper installation.

Quality Assurance

AP Exhaust manufactures replacement exhaust components for OE-style service applications. Part number 700420 is built with aluminized steel construction and a baffled design to support a factory-like fit and sound profile on the listed vehicles.