Roush 422046 Resonator-Delete X-Pipe for 2015-25 Mustang GT (5.0L)

Vehicle Fitment

• 2015-2025 Ford Mustang GT (5.0 L V8, all trims) - fastback & convertible

Features

• Stainless-steel mandrel-bent 2.5" tubing X-pipe design to reduce back-pressure
• Eliminates factory mid-pipe resonator for a race-car-inspired sound and more aggressive tone
• Fits with factory or aftermarket axle-back exhaust systems without modification
• Designed for high-RPM flow optimization - ideal for performance driving on the S550/S650 Mustang GT platform
• 12-lb weight reduction compared to the factory mid-pipe design
• Direct-fit bolt-on installation requiring no custom fabrication - uses factory clamps and locations
• Compatible with both active-exhaust and non-active-exhaust configurations
• High corrosion-resistance stainless construction for durability and long service life

Specifications

• Part number: 422046
• Material: 304 stainless steel tubing
• Piping diameter: 2.50" nominal
• Construction: X-pipe crossover design, resonator delete application
• Fitment: 2015-2025 Ford Mustang GT (5.0L) - fastback or convertible

Included Components

• 1x stainless-steel X-pipe assembly
• 2x band clamps for attachment to OE mid-pipe ends
• Installation instructions

Product Description

The Roush 422046 Resonator-Delete X-Pipe provides Mustang GT owners (model years 2015-2025) with an effective upgrade to exhaust flow and sound. By removing the factory resonator and incorporating an X-pipe crossover design, this part reduces back-pressure, enhances high-RPM response, and delivers a deeper, more aggressive exhaust note while retaining the OE catalytic converter section.

Installation is straightforward and uses the factory mounting geometry with included band clamps - no cutting, welding or modification is required. The durable 304 stainless steel construction ensures longevity and corrosion resistance. This upgrade is ideal for performance Mustang GT owners seeking more sound, improved flow and better throttle response without the complexity of a full cat-back exhaust swap.

Because fitment is confirmed through 2025, this listing covers the full range of relevant model years for the GT (5.0L) platform. Always verify the car's engine, trim and exhaust configuration (active vs non-active) before installation to ensure compatibility and desired sound outcome.