Description
Unlock the full potential of your 2015–2020 Mustang GT350 or GT350R with this 3.0-inch Active Valve Cat-Back Exhaust System, engineered specifically for the high-revving 5.2L Voodoo V8. Designed to deliver aggressive performance tone with zero drone, this system provides complete sound control while maintaining refined drivability.
This updated Active Cat-Back (Part #21096) replaces the obsolete non-active system (Part #14348) and integrates seamlessly with factory valve modules to maintain full OEM functionality. The system allows drivers to transition from Xtreme to Touring sound levels (valve open to closed), offering a dynamic exhaust experience tailored to driving mode and preference.
Constructed from premium 304 stainless steel with straight-through muffler architecture, the 3.0-inch mandrel-bent piping maximizes exhaust flow for improved throttle response and enhanced performance. The system includes CORSA’s exclusive Double X-Pipe (Part #14347), featuring the proprietary Double HELIXX twin crossover design for optimized scavenging, tone refinement, and balanced exhaust pulses.
Key Features:
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3.0-inch Active Valve Cat-Back configuration
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No tips – reuses factory valence bezels
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Dual rear exit design
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Includes Double X-Pipe (Part #14347)
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Reuses factory valve modules
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Switchable sound levels from Xtreme to Touring
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304 stainless steel construction
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Straight-through muffler design for maximum airflow
For customers upgrading:
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If you currently have the non-active Cat-Back (Part #14348), you can convert to the active system by replacing the mufflers with Part #21099.
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If you only have the Double X-Pipe (Part #14347), you can complete the active Cat-Back with Part #21098.
Note for GT350R owners: GT350R models typically do not include a factory resonator (packed muffler). The included Double X-Pipe improves tone quality but will not significantly increase overall volume.
This system is engineered specifically for the acoustic characteristics of the 5.2L flat-plane crank Voodoo engine, delivering aggressive performance sound while maintaining a best-in-class in-cabin, drone-free experience.
Vehicle Fitment
2015–2020
Ford Mustang Shelby GT350 5.2L V8
Ford Mustang Shelby GT350R 5.2L V8
