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#378817497
Flowmaster 817497 Force II Axle-Back Exhaust System
$819.95
/kit
Factory Shipped
$922.95
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Product Summary
Axle-Back Exhaust System Type, Dual Single or Dual
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See rebate detailsKey Specs
| MFG. Part # | 817497 |
| Exhaust System Type | Axle-Back |
| Single or Dual | Dual |
| Exhaust Tubing Diameter | 2-1/4 Inch |
| Exhaust System Kit Type | Direct Fit |
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Flowmaster 817497 Details
Wake up the performance and sound hidden in your 3.7L V6-powered 2011-2014 Ford Mustang with a Flowmaster Force II® exhaust system. These moderate sounding systems retain the dual exhaust system outlets and are designed to replace the original rear mounted mufflers using factory hangers and connections. With easy fit in mind, these systems are mandrel-bent stainless steel for maximum performance and include specially tuned pair of 60 Series™ performance mufflers with large 3.50-inch polished stainless steel tips. As a Force II system, it delivers a moderate exterior tone and a mild interior tone and is suited to the enthusiast who wants a subtle but distinctive performance exhaust note. Like all Flowmaster® systems, the benefits include improved throttle response, power and mileage. The exhaust is a true bolt-on system, includes everything you need to easily install at home with basic hand tools and is covered by our Lifetime Limited Warranty.
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Save 10% instantly on select products across the Holley family of performance brands during the annual Holley I.R.S.Tax Sale. Instant rebate period has been extended and now runs from February 17, 2026 through April 19, 2026.
Guides & Documents
Flowmaster 817497 Specifications
Flowmaster 817497 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 817497 |
| Brand | Flowmaster |
| Exhaust System Type | Axle-Back |
| Single or Dual | Dual |
| Exhaust Tubing Diameter | 2-1/4 Inch |
| Exhaust System Kit Type | Direct Fit |
| GENERAL | |
| Exhaust Exit | Dual Split Rear |
| Sound Level | Moderate |
| Muffler(s) Included | Yes |
| Muffler Quantity | 2 |
| Muffler Connections | Single Inlet | Single Outlet |
| Drivetrain | 2WD |
| Exhaust Tip Included | Yes |
| Exhaust Tip Quantity | 2 |
| Exhaust Tip Shape | Round |
| Exhaust Tip Cut | Angle |
| Exhaust Tip Edge Style | Rolled Edge |
| Exhaust Tip Size | 4.00" |
| Exhaust System Material | 409S Stainless Steel |
| Exhaust System Finish | HTC (High-Temp Coated) |
| Exhaust Pipe Color | Black |
| Muffler Series | 60 Series |
| Muffler Material | 409 Stainless Steel |
| Muffler Color | Black |
| Exhaust Tip Material | 304 Stainless Steel |
| Exhaust Tip Finish | Polished |
| Exhaust Tip Color | Natural |
| Inlet Quantity | Single |
| Inlet Size | 2.25" |
| Outlet Size | 2.50" |
| Tailpipe Diameter | 2.5" |
| Catalytic Converter(s) Included | No |
| Hardware Included | Yes |
| Heat Shield | No |
| Sold in Quantity | Kit |
| GTIN Code | 700042024209 |
| Material Type | Stainless Steel |
| Exit Location | Rear |