Description
Upgrade your 2015–2017 Ford Mustang GT 5.0L V8 Fastback (Premium Package) with this performance-engineered 3.0-inch Cat-Back Exhaust System, featuring a dual rear exit and twin 4.0-inch polished Pro-Series tips (quad-tip layout). Designed for enthusiasts seeking aggressive sound and improved exhaust flow, this system delivers measurable weight savings and bold rear styling.
Built with 3.0-inch mandrel-bent tubing, the system replaces the factory mid-pipe and rear sections to reduce backpressure and enhance throttle response. The included XX-Pipe (P/N 14327) improves exhaust scavenging while producing a sharper, more refined performance tone. The dual-wall, slash-cut 4.0" Pro-Series tips provide a premium motorsport-inspired finish.
⚠️ Fitment Requirement:
Fits Premium Package models ONLY and requires a Roush Quad Tip or similar aftermarket rear valance modification to properly accommodate the twin-tip configuration.
Available Sound Levels
? Xtreme Sound Level
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Most aggressive and loudest configuration
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9 lbs weight savings
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Not recommended for highly aggressive engine modifications due to increased volume
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Includes:
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XX-Pipe P/N 14327
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Sport Axle-Back P/N 14334
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? Sport Sound Level
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Aggressive but more controlled tone
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4 lbs weight savings
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Ideal for pairing with aggressive engine modifications to manage overall exhaust volume
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Includes:
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XX-Pipe P/N 14327
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Touring Axle-Back P/N 14336
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Key Specifications
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System Type: Cat-Back
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Pipe Diameter: 3.0 inches
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Exit Style: Dual rear exit
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Tip Configuration: Twin 4.0" (quad-tip layout)
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Tip Finish: Polished Pro-Series, dual-wall slash-cut
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Installation: Bolt-on, utilizes factory mounting points
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Weight Savings: Up to 9 lbs depending on configuration
Performance Benefits
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Increased exhaust flow and reduced restriction
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Improved throttle response
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Deep, aggressive Coyote 5.0L V8 exhaust tone
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Lighter than factory system
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Premium quad-tip styling upgrade
Vehicle Fitment
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2015 Ford Mustang GT 5.0L V8 – Fastback (Premium Package only)
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2016 Ford Mustang GT 5.0L V8 – Fastback (Premium Package only)
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2017 Ford Mustang GT 5.0L V8 – Fastback (Premium Package only)
Not compatible with base rear valance or non-Premium trims.
This 3.0" Twin-Tip Cat-Back system is ideal for Mustang GT owners seeking maximum performance, configurable sound levels, and aggressive quad-tip styling with OEM-quality fitment.
