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817749 - Axle-back System - 409S - Dual Rear Exit - American Thunder - Mod/Agg Sound - default Image
817749 - Axle-back System - 409S - Dual Rear Exit - American Thunder - Mod/Agg Sound - additional Image
817749 - Axle-back System - 409S - Dual Rear Exit - American Thunder - Mod/Agg Sound - additional Image
2015-17 Ford Mustang GT 5.0L - American Thunder Axle-Back Exhaust SystemYouTube Button

Axle-back System - 409S - Dual Rear Exit - American Thunder - Mod/Agg Sound

American Thunder Kit

PART# 817749

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$691.95   Suggested Retail
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Fits 2015-2017 Ford Mustang GT, Fastback and Convertible Models with 5.0L V8 engine.

Overview

Flowmaster's American Thunder Axle-back exhaust system for the 2015-2017 Ford Mustang GT is perfect for the person looking for an aggressive sound level both inside and outside of the car, with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR (Dual Out Rear) emissions-legal system for cars with the 5.0L engine features a pair of Super 44 Series mufflers and dual mandrel bent 3.00in tailpipes for maximum performance. The system is built out of 409S stainless steel and utilizes 4.00in stainless steel tips. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Note: This system fits hardtops and convertibles.

Features:

  • Patented Delta Flow Technology
  • Dyno Tuned For Maximum Performance
  • Stainless Steel Construction

Specs

2WD/4WDRWD
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Catalytic Converter IncludedNo
ColorBlack
Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionDual Rear Exit
Heat ShieldNo
Inlet Diameter (in)2.5
MaterialStainless Steel
Mount TypeFlanged
Muffler Part NumberKit Only
Muffler Quantity2
Muffler SeriesSuper 44
Muffler TypeWelded Baffle
Outlet Diameter (in)3
Product TypeExhaust Systems / Kits
ShapeOval
Single DualDual
Sound LevelModerate/Aggressive Sound
Tip CutAngle
Tip Diameter (in)4
Tip Edge StyleCut
Tip FinishPolished
Tip Length (in)5.25
Tip LogoEmbossed
Tip MaterialStainless Steel
Tip Quantity2
Tip ShapeRound
Tip StyleDouble Wall
Tubing Diameter (in)3
Tubing MaterialStainless Steel
Part Number817749

Emissions

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 2015-2017 Ford Mustang GT, Fastback and Convertible Models with 5.0L V8 engine.

Applications

Reviews

    *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.