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The valved twin 3-inch cat-back for the pre-facelift S550 GT. Same straight-through centre and rear muffler layout as the fixed version, with Varex valves added so the volume is yours to set.
This is the system for an owner who wants a loud Mustang but still has to leave for work at six. Closed it is civil; open it is not.
Features
- Twin 3-inch bore throughout
- 304-grade stainless steel construction
- Straight-through centre muffler and Varex valved rear mufflers
- Remote control supplied
- Maximum back-pressure reduction
Fitment
Ford Mustang GT S550 fastback, 5.0 V8, 2015-2017.
Does not fit: The 2018-onward facelift takes XFES-FM18-02-VMK-CBS. This is the V8 GT, not the EcoBoost.
Please note: A valved exhaust is loud with the valve open. Check your local noise regulations before using it that way on the road.