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Flowmaster

Flowmaster FlowFX Axle-Back Exhaust System

Fits 2011-2014 Ford Mustang 3.7-liter, FlowFX Axle-Back 2.5-inch Stainless Steel Exhaust System, 4.0-inch Black Ceramic Tips, Dual Out Rear Exit

Part # 717877
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$435.95
Suggested Retail
$485.00
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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
Flowmaster introduces our FlowFX stainless steel axle-back exhaust system for the 2011-2014 Ford Mustang with the 3.7-liter engine. This system uses a FlowFX series muffler for a moderate to mild sound level and increased performance. Mandrel bent 2.5-inch 409 stainless steel tubing allows for maximum exhaust flow and durability. The system uses larger 4.00-inch black ceramic-coated stainless steel tips for a custom look. Max dyno gains of 7 hp and 6 lb-ft at the rear wheels over stock. All of the necessary hardware is included, and factory-mounting locations are used for an easy installation. Backed by Flowmaster's Lifetime Limited Warranty.

Features:

  • FlowFX Series performance mufflers offers a moderate to mild sound level and increased performance
  • 409 stainless steel construction delivers extra durability and improved long-term corrosion resistance
  • Max dyno gains of 7 hp and 6 lb-ft at the rear wheels
  • 2.50-inch 16-gauge mandrel bent stainless steel tubing helps maintain maximum exhaust flow for better power
  • Includes all necessary hardware for an at home installation
  • 4.00-inch black ceramic-coated stainless steel tips add a custom look to the vehicle
  • Uses factory hanger locations for easy installation
  • Lifetime Limited Warranty

About Flowmaster

Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound.

Brand Flowmaster
Emission Code5
Exhaust SeriesFlowFX
Exit PositionDOR
Mount TypeUses Factory Hangers
Muffler Body Length (in)14
Muffler ColorNatural
Muffler FinishBrushed
Muffler Inlet Diameter2.50
Muffler Inlet LocationCentered
Muffler Material409S Stainless Steel
Muffler Outlet Diameter2.50
Muffler Outlet LocationCentered
Muffler Overall Length (in)27.25
Muffler Part NumberKit Only
Muffler Quantity2
Muffler SeriesFlowFX
Muffler ShapeRound
Muffler TypeAbsorption
Product TypeExhaust System
Single DualDual
Sound LevelModerate / Mild
System TypeAxle-back
Tip CutAngle
Tip Diameter4.00
Tip Edge StyleRolled
Tip FinishBlack Ceramic
Tip Length7.5
Tip LogoEmbossed
Tip Material304 Stainless
Tip Quantity2.00
Tip ShapeRound
Tip StyleSingle Wall
Tubing Diameter (in)2.50
Tubing Material409S Stainless Steel
UPC090127129319
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number717877
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.

*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.