Skip to main content

Confirm this item fits

Add your vehicle to make sure this item fits and qualifies for free returns.

Picture 1 of 5

Stock photo
Stock photo
Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System Fits 15-20 F-150 - Picture 1 of 5
Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System Fits 15-20 F-150 - Picture 2 of 5
Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System Fits 15-20 F-150 - Picture 3 of 5
Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System Fits 15-20 F-150 - Picture 4 of 5
Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System Fits 15-20 F-150 - Picture 5 of 5

Exhaust System Kit-FlowFX Extreme Cat-Back Exhaust System fits 15-20 F-150 3.5L

5.01 product rating
Vehicle Accessory Pros (10898)
99.7% positive feedback
Price:
$439.95
Returns:
30 days returns. Seller pays for return shipping.
Condition:
New
Tubing; 3 in. Inlet/3 in. Outlet; Brushed Muffler; 409 Stainless Steel;. Call our experienced tech staff for live help and detailed information regarding your vehicles. This system uses a Flow FX series muffler for a deep powerful sound and increased performance.

About this product

Product Identifiers

BrandFlowmaster
Manufacturer Part Number717978
eBay Product ID (ePID)20052016884

Product Key Features

California Prop 65 WarningNickel (Metallic)

Additional Product Features

NotesDescription--FlowFX Extreme Cat-Back Exhaust System
Sub TypeExhaust System Kit
Part TypeExhaust and Tail Pipes

All listings for this product

Buy It Nowselected
New
Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust 3" Stainless Mandrel Bent
item 1 Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust 3" Stainless Mandrel Bent
$439.95
Free shipping
Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust 3" Stainless Mandrel Bent
item 2 Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust 3" Stainless Mandrel Bent
$439.95
Free shipping
717978 Flowmaster Flow FX Extreme Cat-Back Exhaust System
item 3 717978 Flowmaster Flow FX Extreme Cat-Back Exhaust System
$439.95
Free shipping
FLOWMASTER FLOWFX EXTREME CAT-BACK EXHAUST SYSTEM 717978
item 4 FLOWMASTER FLOWFX EXTREME CAT-BACK EXHAUST SYSTEM 717978
$464.95
Free shipping
Flowmaster 717978 Flowfx Extreme Cat-Back Exhaust, 15-20 F-150
item 5 Flowmaster 717978 Flowfx Extreme Cat-Back Exhaust, 15-20 F-150
$468.99
Free shipping
Flowmaster Flow FX Exhaust for2015-2020 Ford F-150 2.7L, 3.5L, 5.0L
item 6 Flowmaster Flow FX Exhaust for2015-2020 Ford F-150 2.7L, 3.5L, 5.0L
$486.68
Free shipping
Flowmaster 717978 15-20 Ford F150 2.7 3.5 5.0 Exhaust System
item 7 Flowmaster 717978 15-20 Ford F150 2.7 3.5 5.0 Exhaust System
$487.26
Free shipping
Flowmaster Flow Fx Extreme Cat-Back Exhaust Fits 15-20 Ford F-150 2.7L 3.3L 3.5L
item 8 Flowmaster Flow Fx Extreme Cat-Back Exhaust Fits 15-20 Ford F-150 2.7L 3.3L 3.5L
$489.95
Free shipping
Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System NEW
item 9 Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System NEW
$489.95
Free shipping
Flowmaster 717978
item 10 Flowmaster 717978
$489.95
Free shipping
Flowmaster Flowmaster Flow FX Extreme Cat-Back Exhaust System
item 11 Flowmaster Flowmaster Flow FX Extreme Cat-Back Exhaust System
$489.95
Free shipping
Flowmaster FlowFX Extreme CatBack Exhaust For 15-20 Ford F150 2.7L 3.5L 5.0L
item 12 Flowmaster FlowFX Extreme CatBack Exhaust For 15-20 Ford F150 2.7L 3.5L 5.0L
$489.95
Free shipping
Flowmaster Exhaust System Kit - Flowmaster Flow FX Extreme Cat-Back Exhaust Syst
item 13 Flowmaster Exhaust System Kit - Flowmaster Flow FX Extreme Cat-Back Exhaust Syst
$495.52
Free shipping
FLOWMASTER 717978
item 14 FLOWMASTER 717978
$501.11
Free shipping
FLOWMASTER Cat-Back Exhaust System 15- Ford F150 3.5/5.0L 717978
item 15 FLOWMASTER Cat-Back Exhaust System 15- Ford F150 3.5/5.0L 717978
$522.70
Free shipping
Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System Fits 15-20 F-150
item 16 Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System Fits 15-20 F-150
$523.02
Free shipping
Exhaust System Kit-FlowFX Extreme Cat-Back Exhaust System fits 15-20 F-150 3.5L
item 17 Exhaust System Kit-FlowFX Extreme Cat-Back Exhaust System fits 15-20 F-150 3.5L
$523.02
Free shipping
FLOWMASTER 717978 Exhaust System Kit
item 18 FLOWMASTER 717978 Exhaust System Kit
$524.62
Free shipping
FLOWMASTER 717978 15-20 FORD F-150 V6-V8 FF+F13717978
item 19 FLOWMASTER 717978 15-20 FORD F-150 V6-V8 FF+F13717978
$525.15
Free shipping
Flowmaster 717978 FlowFX Extreme Cat-Back System EXHAUST SYSTEM
item 20 Flowmaster 717978 FlowFX Extreme Cat-Back System EXHAUST SYSTEM
$529.91
Free shipping
NEW FLOWMASTER FLOWFX EXTREME CAT-BACK EXHAUST SYSTEM,2015-2020 F-150 2.7L,3.5L
item 21 NEW FLOWMASTER FLOWFX EXTREME CAT-BACK EXHAUST SYSTEM,2015-2020 F-150 2.7L,3.5L
$489.95
+$49.99 shipping
Flowmaster 717978 - Flowmaster Flow FX Extreme Cat-Back Exhaust System
item 22 Flowmaster 717978 - Flowmaster Flow FX Extreme Cat-Back Exhaust System
$540.61
Free shipping
Exhaust System Flowmaster 717978
item 23 Exhaust System Flowmaster 717978
$542.69
Free shipping
Flowmaster Exhaust System Kit 717978;
item 24 Flowmaster Exhaust System Kit 717978;
$552.03
Free shipping
717978 Flowmaster Exhaust System for F150 Truck Ford F-150 2015-2020
item 25 717978 Flowmaster Exhaust System for F150 Truck Ford F-150 2015-2020
$561.56
Free shipping
Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System Fits 15-20 F-150
item 26 Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System Fits 15-20 F-150
$584.62
Free shipping
Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System Fits 15-20 F-150
item 27 Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System Fits 15-20 F-150
$584.62
Free shipping
Exhaust System Flowmaster 717978
item 28 Exhaust System Flowmaster 717978
$589.15
Free shipping
2015-2020 Ford F150 Cat Back Exhaust System 3.5/5.0L Single Exit One Muffler Kit
item 29 2015-2020 Ford F150 Cat Back Exhaust System 3.5/5.0L Single Exit One Muffler Kit
$591.99
Free shipping
Exhaust System Kit-FlowFX Extreme Cat-Back Exhaust System fits 15-20 F-150 3.5L
item 30 Exhaust System Kit-FlowFX Extreme Cat-Back Exhaust System fits 15-20 F-150 3.5L
$598.61
Free shipping
FLOWMASTER 717978 15-20 For Ford F-150 V6-V8 Ffx-Ext
item 31 FLOWMASTER 717978 15-20 For Ford F-150 V6-V8 Ffx-Ext
$643.40
+$37.73 shipping
Exhaust System Kit-FlowFX Extreme Cat-Back Exhaust System fits 15-20 F-150 3.5L
item 32 Exhaust System Kit-FlowFX Extreme Cat-Back Exhaust System fits 15-20 F-150 3.5L
$699.29
Free shipping
Flowmaster 717978 Flow Fx Extreme Cat Back Exhaust System
item 33 Flowmaster 717978 Flow Fx Extreme Cat Back Exhaust System
$718.18
Free shipping
For Ford F-150 15-20 Exhaust System FlowFX Extreme 409 SS Cat-Back Exhaust
item 34 For Ford F-150 15-20 Exhaust System FlowFX Extreme 409 SS Cat-Back Exhaust
$439.95
Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System Fits 15-20 F-150
item 35 Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust System Fits 15-20 F-150
$439.95
listings for this product

Ratings and Reviews

Learn more
5.0
1 product rating
  • 1 users rated this 5 out of 5 stars
  • 0 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Most relevant reviews

  • by cbr4707.g9jbdaz
    Jul 09, 2025

    Great sounding exhaust with very little ...

    Great sounding exhaust with very little drone…easy to install with quality stainless steel

    Verified purchase: YesCondition: New

Best Selling in Exhaust System Kits

Save on Exhaust System Kits

Trending price is based on prices over last 90 days.

You may also like