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Sale price $675.95 Regular price $760.95

Product Information

Flowmaster's FlowFX cat-back for the 2015-2020 Ford F-150 bolts to the factory flange and runs 3.00-inch stainless tube through a straight-through muffler to a single 4.50-inch black tip behind the passenger side rear tire. The job: give the truck a deep sound outside while keeping the cab tone moderate, which is Flowmaster's pitch for it.

Why Upgrade to a FlowFX Cat-Back

Per Flowmaster, here is what the FlowFX system changes:

  • Deep, powerful sound outside the truck with a moderate tone inside the cab. You hear it in the driveway and at the pumps more than you do on the commute.
  • 3.00-inch mandrel-bent tube feeding a straight-through Flow FX performance muffler, so the exhaust path is one smooth run from the factory flange to the tip.
  • A 4.50-inch black ceramic coated tip with the Flowmaster name embossed on it. That is the part you see from the curb, and it is finished in black.
  • Stainless steel construction from flange to tailpipe.
  • Bolts up to the factory flange and hangs from the factory hanger locations, so the truck's existing mounting points do the work during install.

Fitment Notes

Fits 2015-2020 Ford F-150. Does not fit the Raptor. [VERIFY: engine coverage (the title lists 2.7L, 3.5L and 5.0L, while Flowmaster lists 2.7L, 3.3L, 3.5L EcoBoost, 3.5L Ti-VCT and 5.0L), cab and bed configuration, 2WD vs 4WD.]

More Cat-Back that fit your F-150

Install and Honest Talk

This is a cat-back, so the factory pipe from that flange back is what comes off, and the new system bolts to the same flange and hangs from the factory hanger locations. Flowmaster says all necessary parts, hardware and detailed instructions are in the box. [VERIFY: what exactly comes off the truck, tools, whether a lift is needed, tune requirement.]

Honest talk: Flowmaster calls the sound deep and powerful outside and moderate inside the cab. Moderate is their word, not a promise of quiet. A straight-through muffler is a sound choice first, and you will hear it on a long highway drive; if you want the cab to stay stock-quiet, this is not the part. The exit is a single tailpipe on the passenger side with a 4.50-inch tip that carries the Flowmaster name, so that is the look the truck wears, and it is a one-sided look. What else you need: Flowmaster says the parts, hardware and instructions ship in the box. Check those instructions for tools, whether the truck needs a lift, and whether a tune is called for.

Specs

  • Brand: Flowmaster
  • Part number: 717887
  • Part type: Catback
  • Quantity: One system (parts, hardware and instructions included, per Flowmaster)
  • Material: Stainless steel
  • Tubing: 3.00-inch mandrel-bent
  • Muffler: Flow FX straight-through performance muffler
  • Exit: Single tailpipe, behind the passenger side rear tire
  • Tip: 4.50-inch black ceramic coated, embossed with the Flowmaster name
  • Connection: Bolts to the factory flange
  • Mounting: Factory hanger locations
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Buying parts for your Mustang or F-150 should not feel like homework. Too many stores bury you in a giant catalog, slap the same distributor description on every product, and leave you guessing whether it even fits.


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