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Flowmaster

Flowmaster Flow FX Axle-Back Exhaust System

Part # 717877

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

Flowmaster Flow FX Axle-Back Exhaust System

In Stock
Free Shipping - Lower 48 US States
Advertised Price $614.95
$552.95
Save $62.00
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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 Flow FX stainless steel axle-back exhaust system for the 2011-2014 Ford Mustang with the 3.7-liter engine. This system uses a Flow FX 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:

  • Flow FX 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

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

Brand Flowmaster
California Proposition 65Yes
CARB (California) CompliantYes
Catalytic Converter IncludedNo
Catalytic Converter Quantity0
CategoryExhaust
Clamping TypeFlat Band
Clamps IncludedYes
Emission Code5
Exhaust SeriesFlow FX
Exhaust Tip ColorBlack
Exhaust Tip ConnectionClamp-On
Exhaust Tip CutAngled
Exhaust Tip Diameter4.00 IN
Exhaust Tip EdgeRolled Edge
Exhaust Tip FinishBlack Ceramic Coating
Exhaust Tip IntercooledNo
Exhaust Tip Length7.50 IN
Exhaust Tip Material304 Stainless Steel
Exhaust Tip Quantity2
Exhaust Tip ResonatedNo
Exhaust Tip ShapeRound
Exhaust Tip WallSingle Wall
Exit StyleDual Out Rear
FinishNatural
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Inlet TypeClamp-On
Main Piping Diameter2.50 IN
Mount TypeUses Factory Hangers
Mounting Bracket IncludedNo
Muffler (Left) Body Height4.00 IN
Muffler (Left) Body Length14.00 IN
Muffler (Left) Body Width4.00 IN
Muffler (Left) TypeAbsorption
Muffler (Right) Body Height4.00 IN
Muffler (Right) Body Length14.00 IN
Muffler (Right) Body Width4.00 IN
Muffler (Right) TypeAbsorption
Muffler Body Diameter4.00 IN
Muffler Body Length14.00 IN
Muffler Body Material409 Stainless Steel
Muffler Body ShapeRound
Muffler ColorSilver
Muffler FinishNatural
Muffler Flanged InletNo
Muffler Flanged OutletNo
Muffler IncludedYes
Muffler Inlet Inside Diameter2.50 IN
Muffler Inlet LocationCenter
Muffler Inlet Outside Diameter2.63 IN
Muffler Outlet Diameter2.50 IN
Muffler Outlet LocationCenter
Muffler Outlet Quantity1
Muffler Overall Length27.25 IN
Muffler Part NumberKit Only
Muffler Quantity2
Muffler SeriesFlow FX
Muffler TypeAbsorption
Part TypeExhaust System
Pipe ColorSilver
Pipe Material409 Stainless Steel
Product TypeExhaust System
Sound LevelModerate/Mild
Spring Bolt Kit IncludedNo
Sub CategoryExhaust and Tail Pipes
Tail Pipe Outlet Outside Diameter2.50 IN
Tail Pipe Quantity2
Dual
Tail Pipe Tapered OutletNo
Tip LogoEmbossed
TypeAxle-Back
Valve IncludedNo
Valve TypeNot Applicable
UPC090127129319
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
Part Number717877
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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.
Instructions - 717877_instructions.pdf
Instructions - Flowmaster Warranty 26 Update.pdf

*Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

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

Flowmaster Flow FX Axle-Back Exhaust System
Flowmaster Flow FX Axle-Back Exhaust System
Advertised Price $614.95
$552.95
Save $62.00