MBRP S6012409 4" Cat-Back Exhaust for 06-07 Silverado/Sierra 2500/3500 Duramax

Vehicle Fitment

• 2006-2007 Chevrolet Silverado 2500HD/3500HD (Extended Cab, Crew Cab)
• 2006-2007 GMC Sierra 2500HD/3500HD (Extended Cab, Crew Cab)
• Engine: 6.6L Duramax LBZ Diesel
• Drivetrain: RWD/4WD

Features

• 4-inch mandrel-bent T409 stainless steel tubing
• Single side exit configuration for a clean look
• Street profile muffler for a balanced exhaust note
• Mirror-polished T304 stainless steel rolled edge exhaust tip
• Direct bolt-on installation with no welding required
• Includes all necessary hardware for installation
• Lifetime warranty against manufacturer defects
• Designed to improve torque and horsepower

Specifications

• Material: T409 Stainless Steel
• Pipe Diameter: 4 inches
• Tip Diameter: 5 inches
• Exit Style: Single Side Exit
• Exhaust Type: Cat-Back
• Profile: Street Profile
• Installation: Bolt-on, no welding required
• Compatibility: 2006-2007 Chevy/GMC 2500HD/3500HD with 6.6L Duramax LBZ engine

Included Components

• 1x Muffler
• 1x Tailpipe
• 1x Over-axle Pipe
• 1x Extension Pipe
• 1x 5-inch OD Exhaust Tip
• 1x Hardware Kit (clamps and brackets)

Product Description

The MBRP S6012409 Cat-Back Exhaust System is engineered to enhance the performance and sound of your 2006-2007 Chevrolet or GMC 2500HD/3500HD equipped with the 6.6L Duramax LBZ engine. Constructed from durable T409 stainless steel, this system features 4-inch mandrel-bent tubing that ensures smooth exhaust flow, reducing backpressure and improving engine efficiency. The street profile muffler delivers a rich, mellow exhaust note that is aggressive under throttle without being intrusive during highway cruising.

Designed with durability in mind, the system includes a 5-inch rolled angle cut exhaust tip and is backed by a lifetime warranty against manufacturer defects. The direct bolt-on installation utilizes OEM hangers and comes with all necessary hardware, making it a straightforward upgrade for your truck. Whether you're looking to improve performance, sound, or both, the MBRP S6012409 offers a reliable solution for your diesel truck needs.