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Flowmaster FlowFX Cat-Back Exhaust System

2004-2008 Ford F-150 trucks, 4.6L, 5.4L engine, 2/4 Wheel drive, all Wheelbases.

Part # 717868
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Estimated shipping date: 03/16/2022
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The Flowmaster® FlowFX Cat-back exhaust system is designed for 2004-2008 Ford F-150 trucks with 4.6L and 5.4L engines. This bolt-on system is manufactured using durable 409 stainless steel throughout, and features a 3.00-inch inlet pipe leading to a single inlet/dual outlet FlowFX® straight-through muffler for a deep, moderately aggressive sound and maximum performance. The dual 2.50-inch mandrel-bent tailpipes are custom routed to clear the factory spare tire and tow hitch without any clearance issues and exit out the sides behind the rear tires, which is ideal when towing so you don't blow exhaust fumes on your boat, vehicle or trailer. The system is then finished off with a pair of large 4.50-inch black ceramic coated stainless steel tips, giving your F-150 an aggressive look to go with the sound of the FlowFX performance muffler. This system utilizes the factory hanger locations and includes detailed instructions and all necessary hardware for an easy at home installation. Notes: Fits all 2/4 wheel drive models and all wheelbases.


  • Large 4.5-inch Black Ceramic Coated Stainless Steel Tips
  • FlowFX "Straight-through" Performance Mufflers
  • Deep Powerful Tone Exterior Sound
  • Includes All Necessary Hardware
  • Full Stainless Steel Construction
  • Clears the Factory Spare Tire
  • Lifetime Limited Warranty
  • Easy at Home Installation

About Flowmaster

Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound.

Brand Flowmaster
Emission Code5
Exhaust SeriesFlowFX
Exit PositionDual Side Exit
Material409 Stainless Steel
Mount TypeUses Factory Hanger
Muffler Inlet Diameter (in)3
Muffler Inlet LocationCentered
Muffler Outlet Diameter (in)2.5
Muffler Outlet LocationDual Outlet
Product TypeExhaust System
Single DualDual
Sound LevelModerate
System TypeCat-back
Tip CutAngle
Tip Diameter4.5
Tip Edge StyleRolled
Tip FinishBlack Ceramic
Tip Length11
Tip LogoEmbossed
Tip Material304 Stainless
Tip ShapeRound
Tubing Diameter (in)2.5
Tubing Material409S Stainless Steel
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number717868

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

2004-2008 Ford F-150 trucks, 4.6L, 5.4L engine, 2/4 Wheel drive, all Wheelbases.

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Some parts are not legal for use in California or other states with similar regulations.