RAM, 2011-2026, 6.4L, Stainless - MPI Exhaust Cat-Back Dual Stainless Kits

The MPI Exhaust Kit is a Cat-back Exhaust system specifically engineered for Ram trucks equipped with a 6.4L engine. It enhances overall vehicle performance and towing power, delivering notable gains in horsepower, torque, and fuel efficiency, as verified by extensive dyno testing. Designed for easy DIY installation, the kit leverages 35 years of exhaust experience and includes all necessary hardware.

Features:

• Patented Pulse Chamber Technology: Our PCT is utilized to eliminate all in-cab drones, even while towing!! Backed by our Guaranteed No Drone.  
• High-Quality Materials: The MPI Stainless kit features durable 409 Stainless components, including hangers, clamps, tubing, and mufflers, with 304 Stainless tips.
• Easy Installation: No welding needed. It uses factory hanger locations and includes detailed trimming instructions to accommodate all wheelbases.

Performance Benefits:

• Horsepower Gains:+ 18 hp at 3,900 RPM
• Fuel Efficiency: Average improvement of 2-4 MPG
• Sound Quality: Aggressive yet refined exhaust tone with no in-cab droning
• 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: Ram
• Model Years: 2011 – 2026
• Chassis: 2500, 3500
• Engine: 6.4L
• Wheelbase: Compatible with all wheelbases

Detailed Specifications

• Material: 409 Stainless steel
• Installation: Clamp-together, direct fitment to factory hanger locations.
• Hardware: Includes all necessary hardware for installation.
• Tubing Size: Dyno-proven optimal size for performance.
• Tips: Large 3.5" x 12" long 304 Stainless tips for a refined appearance.

Patented Technology

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

Warranty

• MPI Exhaust has A Limited Lifetime Warranty for all Stainless Products.

Instructions

D351 & D352 - Instructions

Fitment Images

•   2025 Ram 6.4L 3500 - Behind Tire - Black Tips - MPI Turbo Series