GMC/Chevy, 2014-2018, 5.3L, Stainless - MPI Exhaust Cat-Back Dual Exhaust Kits

GMC/Chevy, 2014-2018, 5.3L, Stainless - MPI Exhaust Cat-Back Dual Exhaust KitsThe MPI Exhaust Kit is a Cat back Exhaust system specifically engineered for Chevy GMC trucks equipped with a 5. 3L engine. It enhances overall vehicle performance and towing power, delivering notable gains in horsepower, torque, and fuel efficiency, as verified through extensive dyno testing. Designed for easy DIY installation, the kit leverages 35 years of exhaust experience and includes all necessary hardware. These kits are 50 state emission legal

The MPI Exhaust Kit is a Cat-back Exhaust system specifically engineered for Chevy/GMC trucks equipped with a 5.3L engine. It enhances overall vehicle performance and towing power, delivering notable gains in horsepower, torque, and fuel efficiency, as verified through extensive dyno testing. Designed for easy DIY installation, the kit leverages 35 years of exhaust experience and includes all necessary hardware. 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 ] 

• Horsepower Gains: + 21.5 hp @ 4,000 RPM
• Torque Gains: + 28 lb-ft @ 4,000 RPM
• Fuel Efficiency: Average improvement of 2-4 MPG
• Heat: Reduces under-hood manifold temperature by 150 degrees

Sound Quality: 

• MPI Turbo Series: Our Turbo series Muffler combines MPI benefits with a pleasant, mellow exterior tone that is slightly deeper than the stock system.
• MPI Performance: Our Performance Muffler provides a crisp, aggressive tone that remains balanced. 

Fitment:  

• Make: Chevy or GMC
• Model Years: 2014 – 2018
• Chassis: 1500
• Engine: 5.3L  
• 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: Large 3.5" x 12" long tips for a refined appearance.

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

G821 & G822 Instructions