GMC/Chevy, IN bumper, 2019-2025, Stainless - MPI Exhaust Cat-Back Dual Exhaust Kits

MPI Exhaust Kit for GM In-Bumper Overview

The MPI Exhaust Kit is a Cat-back Exhaust system specifically engineered for Chevy/GMC trucks equipped with a 5.3L or 6.2L  engine. It enhances overall vehicle performance and towing power, offering notable improvements in horsepower, torque, and fuel efficiency, verified through extensive dyno testing. Designed for easy DIY installation, the kit leverages 35 years of exhaust experience and includes all necessary hardware for installation. These kits are 50-state emission legal and do not void the factory warranty.

Key Features

• Patented Pulse Chamber Technology: Eliminates all in-cab droning common with other aftermarket exhausts.
• High-grade stainless-steel Construction: Formulated for high heat resistance and durability against road salts.
• Straightforward Installation: No welding required, utilizes factory hanger locations, and comes with detailed trimming instructions for different wheelbases.

Performance Benefits: [ Sound Video ] 

• 5.3L Horsepower Gains: + 37.73 hp @ 3,900 RPM
• Torque Gains: + 50.58 lb-ft @ 3,900 RPM
• Sound Quality: Aggressive yet refined exhaust tone with no in-cab droning
• 6.2L Horsepower Gains: + 14.50 hp @ Peak
• Torque Gains: + 31.12 lb-ft @ Peak
• Fuel Efficiency: Average improvement of 2-4 MPG
• Heat: Reduces under-hood manifold temperature by 150 degrees

Fitment:

• Make: Chevy or GMC
• Model Years: 2019 – 2024
• Chassis: 1500
• Engine: 5.3L In-bumper* (HDMI ports) 6.2L 
• Wheelbase: Compatible with all wheelbases

Detailed Specifications

• Material: 409 Stainless
• Installation: Clamp-together system, direct fitment to factory hanger locations.
• Hardware: Includes all necessary hardware for installation.
• Design: Compatible with the factory spare tire.
• Tubing Size: Dyno-proven optimal size for performance.
• Tips: Reuses factory bumper tips

Patented Technology

• Exhaust Pulse Chamber (Pat. 11713700): Guaranteed no drone and optimizes exhaust flow and overall performance.

Warranty

• Stainless Warranty: Ensures long-term reliability and customer satisfaction.

Instructions

G123 - Instructions

G123 - Parts/Instructions