MPI Performance Plus Cat-back System
For 2007-2011 Chevy 6.0L engines, this is our most aggressive sound option. The 10-series muffler design delivers intense exterior noise while maintaining a mellow interior with zero in-cab drone, thanks to our patented Pulse Chamber design.

Performance

• Dyno Results: Gains of 21.83 hp and 6.09 lb-ft at the rear wheels over stock at peak performance (No tuning required).
• Fuel Efficiency: Most Trucks see a 2-4 MPG increase compared to stock but results may very.

Customizable Sound Options

• Choose your preferred sound level based on personal preference.
• Guaranteed No Drone: Ensures a comfortable, drone-free cabin experience, even when towing or with aggressive sound options.

Design & Construction

• Quality Materials: 14-gauge aluminized tubing designed to withstand harsh environments.
• Anti-Rust Coating: Features a high-quality anti-rust coating for extended durability.
• Patented Exhaust Pulse Chamber: Patent #11713700 optimizes exhaust performance.

Installation & Compatibility

• Direct Fitment: Designed for 2007-2011 Chevy & GMC 2500/3500 series trucks with a 6.0L engine.
• Wheelbase Compatibility: Fits all wheelbases. Trimming required for shorter wheelbases, with instructions provided.
• No Welding: Clamp-on design requires no welding for easy installation.
• Factory Hanger Locations: Uses existing hanger points; additional hardware included for the left rear.

Warranty & Guaranteed

• Warranty: Backed by a 3-year Limited warranty.
• No In-Cab Drone: Guaranteed to provide a pleasant cabin experience without drone.

The MPI Cat-back system offers aggressive sound, performance gains, and durable construction for all 2007-2011 Chevy 6.0L truck owners.