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Flowmaster American Thunder Axle-back Exhaust System

Fits 2018-2023 Mustang GT 5.0L without Factory Active Performance Exhaust Valves. - Aggressive to moderate sound

Part # 817807
1 Review

Flowmaster American Thunder Axle-back Exhaust System

In Stock
Free Shipping - Lower 48 US States
$949.95
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Delta Flow
5

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.

See Emissions Details
The Flowmaster American Thunder® Axle-back exhaust system for the 2018-2023 Ford Mustang GT with the 5.0L engine is perfect for the person looking for an aggressive exterior sound level with all of the performance benefits that you would expect from Flowmaster®. This bolt-on 409S stainless steel system features 3.00-inch mandrel-bent tubing and two Super 44® series mufflers for maximum power and exterior sound quality, but with a moderate and pleasant interior tone at cruising speeds. The system is finished off with quad 4.00-inch polished 304 stainless steel tips. This system includes all necessary parts, hardware and instructions for an easy installation. NOTE: This kit will not fit vehicles with the Active Performance Exhaust option. Note: Fits Coupes & Convertibles.

Features:

  • Quad 4.00-inch Polished 304 Stainless Steel Tips
  • Dyno-Tuned for Maximum Performance
  • Uses the Factory Hanger Locations
  • 409S Stainless Steel Construction
  • Moderate/Aggressive Sound
  • Lifetime Limited Warranty
  • Flowmaster Quality
  • Easy Installation

About Flowmaster

Shop the official site of Flowmaster for exhaust systems, mufflers, and more that deliver the iconic Flowmaster sound. Available at Holley.com!

Brand Flowmaster
Catalytic Converter IncludedNo
Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionDual Out Rear
Heat ShieldNo
Material409 Stainless Steel
Mount TypeUses Factory Hangers
Muffler Body Length (in)13
Muffler ColorBlack
Muffler FinishPainted
Muffler Inlet Diameter (in)2.5
Muffler Inlet LocationOffset
Muffler Material409S Stainless Steel
Muffler Outlet Diameter (in)3
Muffler Outlet LocationDual Outlet
Muffler Overall Length (in)51.5
Muffler Part NumberKit Only
Muffler Quantity2
Muffler SeriesSuper 44
Muffler ShapeOval
Muffler TypeReflection
Product TypeExhaust System
Single DualDual
Sound LevelAggressive / Moderate
System TypeAxle-back
Tip CutAngle
Tip Diameter (in)4
Tip Edge StyleCut
Tip FinishPolished
Tip Length (in)5.25
Tip LogoEmbossed
Tip Material304 Stainless
Tip Quantity4
Tip ShapeRound
Tubing Diameter (in)3
Tubing Material409S Stainless Steel
UPC700042037629
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number817807
5

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.
Fits 2018-2023 Mustang GT 5.0L Coupes & Convertibles without Factory Active Performance Exhaust Valves.
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Some parts are not legal for use in California or other states with similar regulations.