XForce Twin 3" Varex Axle-Back Exhaust – 2015-2017 Mustang GT / 2024-2026 Mustang GT
Give your Coyote 5.0L Mustang GT the exhaust sound it deserves—with complete control over how loud you want it to be. The XForce ES-FM15-VMK-ABS Twin 3" Varex Axle-Back Exhaust combines high-flow 304 stainless steel construction with electronically controlled Varex mufflers, giving you the ability to switch from a more controlled street-friendly exhaust note to an aggressive, wide-open sound at the push of a button.
Built around twin 3-inch mandrel-bent stainless steel piping, this XForce axle-back is designed to improve exhaust flow while reducing restriction compared to the factory system. The straight-through Varex design allows the exhaust to flow freely when the valves are open, producing the deeper, more aggressive sound you'd expect from a modified Coyote 5.0L V8.
The real advantage is the Varex valve technology. Each round rear muffler features an electronically controlled butterfly valve that lets you adjust the exhaust volume to match the situation. Keep the valves closed for a quieter, more refined exhaust note when you're cruising or want to keep things under control. Open the valves and let the 5.0L Coyote breathe with a louder, more aggressive exhaust tone. The included remote control gives you quick access to the sound you're after, including the ability to adjust the valves between open and closed positions. A Varex Smartbox can also be added for advanced smartphone-based control and additional valve-control functions.
Finished with dual 4-inch double-wall slant-cut polished stainless steel tips, the XForce Varex axle-back adds a serious performance look to the rear of your Mustang while maintaining a clean, factory-style fitment. The system is designed to adapt to the factory exhaust piping, making it a straightforward axle-back upgrade without replacing the entire exhaust system.
XForce Varex Axle-Back Features
- Twin 3-inch mandrel-bent 304 stainless steel exhaust piping
- Round electronically controlled Varex rear mufflers
- Adjustable exhaust sound with included remote control
- Straight-through flow path when Varex valves are open
- Dual 4-inch double-wall slant-cut polished stainless steel tips
- Direct-fit axle-back design
- Designed to work with factory exhaust piping
- Plug-and-play Varex control system with in-car 12V power connection
- Varex Smartbox compatible for advanced smartphone control
- High-flow design for improved exhaust flow and reduced restriction
- Aggressive Coyote 5.0L sound when the valves are opened
Fitment
- 2015 Ford Mustang GT 5.0L
- 2016 Ford Mustang GT 5.0L
- 2017 Ford Mustang GT 5.0L
- 2024 Ford Mustang GT 5.0L
- 2025 Ford Mustang GT 5.0L
- 2026 Ford Mustang GT 5.0L
Part Number: ES-FM15-VMK-ABS
If you want an axle-back exhaust that gives your Mustang GT an aggressive Coyote sound without forcing you to live with that volume all the time, the XForce Varex system puts the decision in your hands. Quiet when you want it. Loud when you mean it.
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