Free shipping on orders over $100 Details

Flowmaster FlowFX Axle-Back Exhaust System

Fits 2015-2020 Ford Mustang with 2.3L Ecoboost and 3.7L engine.

PART# 717902

Be the first to write a review
$550.00   Suggested Retail
$494.95   Holleydays Price
Estimated shipping date: 11/27/2020
Email Me When Available
Free Shipping
Add to Wish List

Starting at $44 a month with Learn More
Moderate sound


Introducing the new FlowFX® Axle-back exhaust system for 2015-2020 Ford Mustangs with a 2.3L Ecoboost, or 3.7L engine. This system is perfect for the person looking for a deep exterior sound while maintaining a moderate interior sound level with all of the performance benefits that you would expect from Flowmaster®. Features include a pair of compact round FlowFX "straight-through" performance mufflers which have a large 3.00-inch core for maximum performance and a deep sound. The mufflers are constructed from bright 409S stainless steel, utilize the factory hangers and are finished off with large 4.50-inch black ceramic coated stainless steel tips that fill out the factory exhaust cutouts. This system is designed for easy installation, includes all necessary parts, hardware, and detailed instructions. Notes: Fits Coupes and Convertibles.


  • Large 4.50-inch Black Ceramic Coated Stainless Steel Tips
  • FlowFX "Straight-through" Performance Mufflers
  • Dyno-Tuned for Maximum Performance
  • Uses the Factory Hanger Locations
  • All Stainless Steel Construction
  • Lifetime Limited Warranty
  • Quick & Easy Installation
  • All Mandrel-bent Tubing
  • Deep Powerful Sound


Emission Code5
Exhaust SeriesFlowFX
Exit PositionDual Out Rear
Material409 Stainless Steel
Mount TypeUses Factory Hanger
Product TypeExhaust System
Single DualDual
Sound LevelModerate
System TypeAxle-back
Tip CutAngle
Tip Diameter4.5
Tip Edge StyleRolled
Tip FinishBlack Ceramic
Tip LogoEmbossed
Tip Material304 Stainless
Tip ShapeRound
Tubing Diameter (in)3
Tubing Material409S Stainless Steel
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number717902



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.

Tech Resources

Fits 2015-2020 Ford Mustang coupes & convertibles with the 2.3L Ecoboost or 3.7L engine.


We Suggest

      *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

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

       X  Holleydays 2020 20% off and DD
       X  Holleydays 2020 20% off and DD