Flowmaster FlowFX Direct Fit Muffler 717776
Flowmaster FlowFX Direct Fit Muffler 717776
Flowmaster FlowFX Direct Fit Muffler 717776

Flowmaster FlowFX Direct Fit Muffler 717776

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Designed as a direct-fit replacement muffler for 2017-2020 Ford F-150 Raptor trucks with 3.5L Ecoboost engine. This easy to install muffler delivers a moderate to aggressive interior and exterior sound level that will appeal to anyone looking for a deep powerful exhaust note. Features include all 3.00-inch mandrel-bent stainless steel tubing mated to a specially designed dual 3.00-inch inlet/outlet "straight-through" FlowFX muffler for great sound and maximum performance. Utilizes the factory hanger locations and connections without any cutting or welding and can be installed in less than 30 minutes. Includes all necessary parts, hardware and easy to follow instructions.


  • FlowFX "Straight-through" Performance Muffler
  • Bright 409s Stainless Steel Construction
  • Moderate to Aggressive Exhaust Tone
  • Over 35 Years of Flowmaster Quality
  • Uses the Factory Hanger Locations
  • Quick and Easy Installation
  • Lifetime Limited Warranty
  • Direct-fit System


  • Fits 2017-2020 Ford F-150 Raptor Trucks with 3.5L Ecoboost engine.
Brand Flowmaster
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
California Proposition 65 Chemical Name Nickel (Metallic)
California Proposition 65 Required Yes
Catalytic Converter Included No
Emission Code 5
Exhaust Series FlowFX
Exit Position Dual Out Rear
Heat Shield No
Material 409 Stainless Steel
Mount Type Uses Factory Hangers
Muffler Body Length (in) 13
Muffler Color Natural
Muffler Finish Brushed
Muffler Inlet Diameter (in) 3
Muffler Inlet Location Dual
Muffler Material 409S Stainless Steel
Muffler Outlet Diameter (in) 3
Muffler Outlet Location Dual
Muffler Overall Length (in) 56
Muffler Part Number Kit Only
Muffler Quantity 1
Muffler Series FlowFX
Muffler Shape Oval
Muffler Type Absorption
Product Type Exhaust System
Single Dual Dual
Sound Level Moderate/Aggressive
System Type Direct-Fit Muffler
Tubing Diameter (in) 3
Tubing Material 409S Stainless Steel
Warning California Proposition 65

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