Flowmaster Force II Cat-Back Exhaust System, 2017-2020 Ford F-250/F-350 Super Duty



2017-2020 Ford F-250/F-350 Super Duty with 6.2L and 7.3L engines.

Our Force II® line of exhaust systems are engineered as our quietest offerings, but will wake up your vehicles sound and power over the factory O.E. exhaust. You can generally expect a noticeable sound increase with a deep performance tone outside the vehicle, yet minimal interior drone in the cab area while cruising down the road enjoying all the performance benefits you've come to expect from Flowmaster®. This bolt-on emissions-legal cat-back system features full stainless steel construction, uses the factory hanger locations, 50 Series HD™ performance muffler with large 4.00-inch internals and dual 3.00-inch mandrel bent tailpipes offering two tailpipe exits in one kit. Choose your tailpipe exit either located under the rear bumper for an aggressive dual exhaust look, or exiting out the sides behind the rear tires to prevent blowing exhaust on your boat or trailer when towing. The system is finished off with a pair of large 4.00-inch polished logo embossed stainless steel tips for a modern look and includes instructions and all necessary hardware for an easy at home installation. Note: Fits 2/4 wheel drive and all wheelbases.


  • Moderate Exterior Sound with Mild Interior Sound
  • Large 4.00-inch Polished 304 Stainless Steel Tips
  • Dyno-Tuned for Maximum Performance
  • Mandrel-bent Stainless Steel Tubing
  • Uses the Factory Hanger Locations
  • 409S Stainless Steel Construction
  • 50 Series HD Performance Muffler
  • Retains Factory Resonators
  • Lifetime Limited Warranty
  • Flowmaster Quality
  • Easy Installation


Brand Flowmaster
Catalytic Converter Included No
Emission Code 5
Exhaust Series Force II
Exit Position Dual Out Rear / Dual Out Side
Heat Shield No
Material 409 Stainless Steel
Mount Type Uses Factory Hangers
Muffler Body Length (in) 18
Muffler Color Black
Muffler Finish Painted
Muffler Inlet Diameter (in) 3
Muffler Inlet Location Centered
Muffler Material 409S Stainless Steel
Muffler Outlet Diameter (in) 3
Muffler Outlet Location Dual Outlet
Muffler Overall Length (in) 24
Muffler Part Number Kit Only
Muffler Quantity 1
Muffler Series 50 Series HD
Muffler Shape Oval
Muffler Type Reflection
Product Type Exhaust System
Single Dual Dual
Sound Level Moderate
System Type Cat-back
Tip Cut Angle
Tip Diameter (in) 4
Tip Edge Style Cut
Tip Finish Polished
Tip Length (in) 13
Tip Logo Embossed
Tip Material 304 Stainless
Tip Quantity 2
Tip Shape Round
Tubing Diameter (in) 3
Tubing Material 409S Stainless Steel
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
California Proposition 65 Required Yes
Part Number 817757
Part Type:
Exhaust Systems