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Home | 15-17 Mustang | Exhaust | 2.3L Mufflers | Flowmaster | 2015-18 Mustang EcoBoost Flowmaster Cat-back System - 409S- DOR - American Thunder Kit - Mod/Agg Sound

2015-18 Mustang EcoBoost Flowmaster Cat-back System - 409S- DOR - American Thunder Kit - Mod/Agg Sound

Item Number:817750
Availability:Usually ships the next business day
Market Price:$863.96Our Price:$807.44
Quantity:
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  • Description
  • Reviews



Flowmaster's American Thunder® Cat-back exhaust system for the 2015-18 Ford Mustang is perfect for the person looking for an aggressive exterior sound level while maintaining a moderate interior sound with all of the performance benefits that you would expect from Flowmaster. This bolt on 409S stainless steel system for the 2.3L EcoBoost engine features 2.50in mandrel bent tubing that splits into dual 2.25in pipes for maximum performance and then runs into Outlaw® Series mufflers. The system is finished off with dual 4.00in stainless steel tips that exit within the rear bumper valence. The exhaust system is manufactured in the USA and is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Note: This system fits hardtops and convertibles.

  • Stainless Steel Construction
  • Dyno Tuned For Maximum Performance
  • Race Proven Outlaw® Muffler Technology

Ordered the cold air and tuner combo. Best tune I have had. Really woke up my 5.0

- C. Faulkner

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