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Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.
| Download Name | File Size |
| fm_warranty_general.pdf | 88.58KB |
| FM_Warranty_General.pdf | 88.58KB |
| NAFTA_COO-2013.pdf | 105.94KB |
| 817807_instructions.pdf | 2.33MB |
| Make | Model | Submodel | Years | Engine | Fitment Notes |
| Ford | Mustang | Bullitt | 2019 | 5.0L / 302 / V8 | Dual Rear Exit; Incl. 3.0 in. Tubing/Two Super 44 Series(TM) Mufflers/4.0 in. Quad Polished Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant |
| Ford | Mustang | Bullitt | 2020 | 5.0L / 302 / V8 | Dual Rear Exit; Incl. 3.0 in. Tubing/Two Super 44 Series(TM) Mufflers/4.0 in. Quad Polished Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant |
| Ford | Mustang | GT Premium | 2018 | 5.0L / 302 / V8 | Dual Rear Exit; Incl. 3.0 in. Tubing/Two Super 44 Series(TM) Mufflers/4.0 in. Quad Polished Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant Does Not Fit Active Performance Exhaust |
| Ford | Mustang | GT Premium | 2019 | 5.0L / 302 / V8 | Dual Rear Exit; Incl. 3.0 in. Tubing/Two Super 44 Series(TM) Mufflers/4.0 in. Quad Polished Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant Does Not Fit Active Performance Exhaust |
| Ford | Mustang | GT Premium | 2020 | 5.0L / 302 / V8 | Dual Rear Exit; Incl. 3.0 in. Tubing/Two Super 44 Series(TM) Mufflers/4.0 in. Quad Polished Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant |
| Ford | Mustang | GT | 2018 | 5.0L / 302 / V8 | Dual Rear Exit; Incl. 3.0 in. Tubing/Two Super 44 Series(TM) Mufflers/4.0 in. Quad Polished Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant Does Not Fit Active Performance Exhaust |
| Ford | Mustang | GT | 2019 | 5.0L / 302 / V8 | Dual Rear Exit; Incl. 3.0 in. Tubing/Two Super 44 Series(TM) Mufflers/4.0 in. Quad Polished Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant Does Not Fit Active Performance Exhaust |
| Ford | Mustang | GT | 2020 | 5.0L / 302 / V8 | Dual Rear Exit; Incl. 3.0 in. Tubing/Two Super 44 Series(TM) Mufflers/4.0 in. Quad Polished Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant |
| California Proposition 65 Chemical Name | Chromium (hexavalent compounds) |
| California Proposition 65 Chemical Name 1 | Nickel (Metallic) |
| California Proposition 65 Chemical Name 2 | Chromium (hexavalent compounds) |
| California Proposition 65 Required | Yes |
| Catalytic Converter Included | No |
| Emission Code | 5 |
| Exhaust Series | American Thunder |
| Exhaust Type | Axle-Back |
| Exit Position | Dual Out Rear |
| Heat Shield | No |
| Heat Shield Attached | No |
| Inlet Inside Diameter | 3.000 in. |
| Material | 409 Stainless Steel |
| Mount Type | Uses Factory Hangers |
| Muffler Body Length | 13.000 in. |
| Muffler Body Length (in) | 13 |
| Muffler Body Material | 409S Stainless Steel |
| Muffler Body Shape | Oval |
| Muffler Color | Black |
| Muffler Count | 2 |
| Muffler Finish | Painted |
| Muffler Inlet Diameter | 2.500 in. |
| Muffler Inlet Diameter (in) | 2.5 |
| Muffler Inlet Location | Offset |
| Muffler Material | 409S Stainless Steel |
| Muffler Outlet Diameter | 3.000 in. |
| Muffler Outlet Diameter (in) | 3 |
| Muffler Outlet Location | Dual Outlet |
| Muffler Overall Length | 51.500 in. |
| Muffler Overall Length (in) | 51.5 |
| Muffler Part Number | Kit Only |
| Muffler Quantity | 2 |
| Muffler Series | Super 44 |
| Muffler Shape | Oval |
| Muffler Type | Reflection |
| Part Type | Exhaust System Kit |
| Single Dual | Dual |
| Single or Dual | Dual |
| Sound Level | Moderate/Aggressive |
| System Type | Axle Back |
| Tail Pipe Diameter | 3.000 in. |
| Tip Cut | Angle |
| Tip Diameter | 4.000 in. |
| Tip Diameter (in) | 4 |
| Tip Edge Style | Cut |
| Tip Finish | Polished |
| Tip Length | 5.250 in. |
| Tip Length (in) | 5.25 |
| Tip Logo | Embossed |
| Tip Material | 304 Stainless Steel |
| Tip Quantity | 4 |
| Tip Shape | Round |
| Tip Type | Double Wall |
| Tubing Diameter | 3.000 in. |
| Tubing Diameter (in) | 3 |
| Tubing Material | 409S Stainless Steel |
| WARNING CA Proposition 65 | WARNING: Cancer and Reproductive Harm |
| Warranty | Limited Lifetime (Lifetime) |
