Ford, 2004-2008, 5.0L - Stainless - MPI Exhaust Cat-Back Dual Stainless Kit

MPI’s Stainless Steel Series is the premier choice for your classic Ford truck. This full cat-back system is dyno-proven to improve performance, while MPI’s patented Pulse Chamber Technology eliminates unwanted interior drone. Built from high-quality stainless steel for long-lasting, rust-resistant durability and backed by over 40 years of exhaust experience, the only question left is—black or polished tips?

Features

• Patented Pulse Chamber Technology: MPI’s PCT eliminates in-cab drone, even while towing, and is backed by our Guaranteed No Drone promise.
• High-Quality Materials: The MPI Stainless kit features durable 409 stainless steel components, including hangers, clamps, tubing, and mufflers, with 304 stainless steel tips.
• Easy Installation: Direct bolt-on design connects to the factory system and replaces the OEM clamp.

Performance Benefits

• Horsepower Gains: +9.5 HP
• Torque Gains: +14 lb-ft
• Fuel Efficiency: Average improvement of 2 MPG
• Heat Reduction: Reduces under-hood manifold temperatures by 150°F

Fitment

• Make: Ford
• Model Years: 2004–2008
• Chassis: F-150
• Engine: 4.6L & 5.4L
• Wheelbase: Built for the longest wheelbase and trimmed shorter during installation as needed.

Sound Quality

• MPI Turbo Series: Combines MPI performance benefits with a pleasant, mellow exterior tone that is slightly deeper than the stock system.
• MPI Performance Series: Provides a crisp, aggressive exterior tone while maintaining a balanced sound.

Detailed Specifications

• Material: 409Ni Stainless Steel
• Installation: Clamp-together system that replaces the factory band clamp.
• Hardware: Includes all necessary hardware for bolt-on installation.
• Design: Compatible with the factory spare tire.
• Tubing Size: Dyno-proven optimal tubing size for performance.
• Tips: 3.5" x 10" 304 stainless steel tips.

Patented Technology

• Exhaust Pulse Chamber (Pat. 11713700): Guaranteed to eliminate interior drone while optimizing exhaust flow and overall performance.

Instructions

Installation instructions provided with the system.

Warranty

• Stainless Warranty: Limited Lifetime Warranty.