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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-717116
FlowFX Cat-Back Exhaust System 1986-1993 Ford Mustang GT 5.0L
$71295
Ships on 09/09/2026
Lowest Price GuaranteeFord
FlowFX Cat-Back Exhaust System1986-1993 Ford Mustang GT 5.0L 2.500 in. Tubing Turndown Tailpipes Dual Out Rear Exit (Behind Rear Valance) Flow FX Series Muffler 409S Stainless Steel
Flowmaster 717116 Features:
- +5 Horsepower (HP) Increase Over Stock Exhaust
- +4 ft.-lbs. Torque (TQ) Increase Over Stock Exhaust
- Unrestricted, straight-through muffler flow with a moderate exterior/mild interior exhaust tone and increased performance
- Increased exhaust pulse velocity with mandrel-bent, corrosion resistant 409 stainless steel tubing
- Attaches with included hardware to factory hangar locations for easy install
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.
Part TypeExhaust System
BrandFLOWMASTER
Package Height14.0
Package Width14.5
Package Length48.75
Weight50.75 PG
Tailpipe Diameter (In.)2.5
Muffler Inlet Inside Diameter2.50 in.
Hangers IncludedYes
Main Piping Diameter2.50 in.
Tail Pipe QuantityDual
Inlet TypeFlanged
Catalytic Converter Quantity0
Exit LocationRear
Muffler Body Length14 in.
Sound LevelModerate/Mild
Muffler Material409S Stainless Steel
Muffler Body Material409 Stainless Steel
Gasket Or Seal IncludedNo
Exhaust Tip IntercooledNo
Pipe ColorSilver
Muffler Quantity2
Muffler Inlet Outside Diameter2.63 in.
Exit QuantityDual
Muffler Flanged OutletNo
Exhaust TypeDual
Catalytic Converter IncludedNo
Heat Shield IncludedNo
Part CategoryPerformance Parts
Hardware IncludedYes
Exhaust Tip Quantity0
Muffler Inlet LocationOffset
Inlet LocationOffset
Valve IncludedNo
Muffler TypeAbsorption
Pipe Material409 Stainless Steel
Tail Pipe Tapered OutletNo
Gauge16
Muffler Body ShapeOval
Mounting Bracket IncludedNo
Muffler Outlet Quantity1
Muffler FinishNatural
Mount TypeUses Factory Hangers
Clamps IncludedYes
FinishNatural
Exit StyleDual Out Rear
Clamping TypeFlat Band
Muffler Flanged InletYes
Mandrel-BentYes
Spring Bolt Kit IncludedNo
Muffler SeriesFlow FX
QuantitySold as a Kit
Muffler IncludedYes
System StyleCat-back
Tail Pipe Outlet Outside Diameter2.50 in.
Muffler ConfigurationOffset/Offset
System Material409S Stainless Steel
Outlet LocationOffset
Valve TypeNot Applicable
Part FitmentDirect Fit
Package Qty1
Package TypeEA
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