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Cat-back System 409S - Dual Rear Exit - American Thunder - Aggressive Sound

American Thunder Kit

Part # 817587 Be the first to write a review

Cat-back System 409S - Dual Rear Exit - American Thunder - Aggressive Sound

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For the serious enthusiast who is looking for all the performance benefits of a complete Cat-back dual exhaust system, this is it. As an American Thunder system, it delivers an aggressive exterior sound level and a moderate interior tone that is suited to the enthusiast who wants to be heard. With maximum performance and easy fit in mind, the system is mandrel bent and includes specially engineered mufflers featuring Delta Flow technology. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for a simple installation. Note: does not fit GT500.

Features:

  • Flowmaster quality
  • Header-back System
  • Aggressive Sound Exterior Exhaust Tone
  • Mandrel bent 16 gauge stainless steel tubing

About Flowmaster

Shop the official site of Flowmaster for exhaust systems, mufflers, and more that deliver the iconic Flowmaster sound. Available at Holley.com!

2WD/4WD2WD
Automotive Item GradeHigh Performance Part
Brand Flowmaster
Exhaust SeriesAmerican Thunder
Exit PositionDual Rear Exit
Heat ShieldNo
Inlet Diameter (in)3
MaterialStainless Steel
Muffler Part NumberKit Only
Muffler Quantity2
Muffler Series60 Series
Outlet Diameter (in)3
Product TypeExhaust Systems / Kits
Single DualDual
Sound LevelAggressive Sound
System TypeCat-back
Tip Diameter (in)4
Tip Quantity2
Tubing Diameter (in)3
UPC700042027453
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number817587
Fits 2013 to 2014 Ford Mustang GT, coupe and convertible with a 5.0L V8 engine. Does not fit GT500
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