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Flowmaster Flowmaster American Thunder Axle-back Exhaust System 817799
Regular Price
$1,899.95
This Flowmaster® American Thunder® Axle-back exhaust system is for 2018-2023 Ford Mustang GT coupes and convertibles with the 5.0L engine and Factory Active Performance Exhaust Option. System features include a pair of specially designed Outlaw® series mufflers giving you high flow with a moderately aggressive exterior and interior tone when the valves are closed, and an aggressive "wide open" exterior sound level when you open up the valves. Other features include large 3.00-inch mandrel-bent 409S stainless steel tubing for high flow, durability, and longevity. Add to that, a pair of our high-quality valves to accommodate the factory exhaust actuators for when you really want to open up the sound. The system is finished off with quad 4.00-inch polished 304 stainless steel tips for an aggressive look that demands attention, the same as the exhaust note. Includes all necessary parts, hardware and detailed instructions for an easy installation you can do at home. Covered by our Lifetime Limited Warranty. Note: Fits both coupes and convertibles.
Flowmaster Flowmaster American Thunder Axle-back Exhaust System 817799
Specifications:
| Description_ABR | SYS 18-23 MU |
| Description_SHO | SYS 18-23 MUSTANG 5. |
| Description_INV | 18-23 MUSTANG 5.0L, AB AMT, W/VALVES, PO |
| Description_ASC | Fits 2018-2023 Mustang GT 5.0L Coupes & Convertibles with Factory Active Performance Exhaust Valves. |
| Description_DES | Flowmaster American Thunder Axle-back Exhaust System |
| Description_EXT | Fits 2018-2023 Mustang GT 5.0L with Factory Active Performance Exhaust Valves. - Aggressive to moderate sound |
| Description_MKT | This Flowmaster® American Thunder® Axle-back exhaust system is for 2018-2023 Ford Mustang GT coupes and convertibles with the 5.0L engine and Factory Active Performance Exhaust Option. System features include a pair of specially designed Outlaw® series mufflers giving you high flow with a moderately aggressive exterior and interior tone when the valves are closed, and an aggressive "wide open" exterior sound level when you open up the valves. Other features include large 3.00-inch mandrel-bent 409S stainless steel tubing for high flow, durability, and longevity. Add to that, a pair of our high-quality valves to accommodate the factory exhaust actuators for when you really want to open up the sound. The system is finished off with quad 4.00-inch polished 304 stainless steel tips for an aggressive look that demands attention, the same as the exhaust note. Includes all necessary parts, hardware and detailed instructions for an easy installation you can do at home. Covered by our Lifetime Limited Warranty. Note: Fits both coupes and convertibles. |
| Description_FAB | Quad 4.00-inch Polished 304 Stainless Steel Tips |
| Description_FAB | For Vehicles With Active Performance Exhaust Option |
| Description_FAB | Aggressive Race-proven Outlaw Mufflers |
| Description_FAB | Dyno Tuned for Maximum Performance |
| Description_FAB | Uses the Factory Hanger Locations |
| Description_FAB | Full Stainless Steel Construction |
| Description_FAB | Straight-through Muffler Design |
| Description_FAB | Lifetime Limited Warranty |
| Description_FAB | Easy Installation |
| Description_ABR | SYS 18-23 MU |
| Description_SHO | SYS 18-23 MUSTANG 5. |
| Description_INV | 18-23 MUSTANG 5.0L, AB AMT, W/VALVES, PO |
| Description_ASC | Fits 2018-2023 Mustang GT 5.0L Coupes & Convertibles with Factory Active Performance Exhaust Valves. |
| Description_DES | Flowmaster American Thunder Axle-back Exhaust System |
| Description_EXT | Fits 2018-2023 Mustang GT 5.0L with Factory Active Performance Exhaust Valves. - Aggressive to moderate sound |
| Description_MKT | This Flowmaster® American Thunder® Axle-back exhaust system is for 2018-2023 Ford Mustang GT coupes and convertibles with the 5.0L engine and Factory Active Performance Exhaust Option. System features include a pair of specially designed Outlaw® series mufflers giving you high flow with a moderately aggressive exterior and interior tone when the valves are closed, and an aggressive "wide open" exterior sound level when you open up the valves. Other features include large 3.00-inch mandrel-bent 409S stainless steel tubing for high flow, durability, and longevity. Add to that, a pair of our high-quality valves to accommodate the factory exhaust actuators for when you really want to open up the sound. The system is finished off with quad 4.00-inch polished 304 stainless steel tips for an aggressive look that demands attention, the same as the exhaust note. Includes all necessary parts, hardware and detailed instructions for an easy installation you can do at home. Covered by our Lifetime Limited Warranty. Note: Fits both coupes and convertibles. |
| Description_FAB | Quad 4.00-inch Polished 304 Stainless Steel Tips |
| Description_FAB | For Vehicles With Active Performance Exhaust Option |
| Description_FAB | Aggressive Race-proven Outlaw Mufflers |
| Description_FAB | Dyno Tuned for Maximum Performance |
| Description_FAB | Uses the Factory Hanger Locations |
| Description_FAB | Full Stainless Steel Construction |
| Description_FAB | Straight-through Muffler Design |
| Description_FAB | Lifetime Limited Warranty |
| Description_FAB | Easy Installation |
| Brand | Flowmaster |
| California Proposition 65 | Yes |
| California Proposition 65 Chemical Name | Nickel (Metallic) |
| California Proposition 65 Chemical Name | Chromium (hexavalent compounds) |
| CARB (California) Compliant | Yes |
| Catalytic Converter Included | No |
| 2874 | 0 |
| Category | Exhaust |
| 3728 | Flat Band |
| 1882 | Yes |
| Emission Code | 5 |
| Exhaust Series | American Thunder |
| 11205 | Silver |
| 9874 | Welded |
| 9876 | Angled |
| 1162 | 4.00 |
| 9877 | Angle Cut |
| 1163 | Polished |
| 9881 | No |
| 10104 | 5.25 |
| 1164 | 304 Stainless Steel |
| 1161 | 4 |
| 9878 | No |
| 10980 | Round |
| 9875 | Double Wall |
| 9870 | Dual Out Rear |
| 200 | Natural |
| 353 | No |
| 3390 | Performance |
| 4364 | Yes |
| Heat Shield Included | No |
| 596 | Clamp-On |
| 9871 | 3.00 |
| Mount Type | Uses Factory Hangers |
| 92 | No |
| 11021 | 5.00 |
| 11022 | 11.375 |
| 11023 | 12.00 |
| 11064 | Reflection |
| 11048 | 5.00 |
| 11049 | 11.375 |
| 11050 | 12.00 |
| 11073 | Reflection |
| 9884 | 5.00 |
| 1892 | 11.00 |
| 4372 | 409 Stainless Steel |
| 4373 | Oval |
| Muffler Color | Black |
| 9882 | Black High-Temperature Paint Finish |
| 4367 | No |
| 4368 | No |
| Muffler Included | Yes |
| 9962 | Slip-Fit |
| 4365 | 3.00 |
| Muffler Inlet Location | Side |
| 4366 | 3.13 |
| Muffler Outlet Diameter | 3.00 |
| Muffler Outlet Location | Dual |
| 4375 | 2 |
| Muffler Overall Length | 49.50 |
| Muffler Part Number | Kit Only |
| 4374 | 2 |
| Muffler Series | 60 Series |
| 1174 | Reflection |
| part type | Exhaust System |
| 3530 | 409 Stainless Steel |
| Product Type | Exhaust System |
| Sound Level | Aggressive / Moderate |
| 4377 | No |
| Sub Category | Exhaust and Tail Pipes |
| 4369 | 2.50 |
| 4376 | 2 |
| Tail Pipe Quantity | Dual |
| 4370 | No |
| Tip Logo | Embossed |
| Type | Axle-back |
| Valve Actuator Included | No, Reuse OEM |
| 6014 | Yes |
| 2126 | OEM-Style Valves |
| Warning | California Proposition 65 |
| Pipe Color | Silver |
| 9885 | 12.00 |
| Brand | Flowmaster |
| California Proposition 65 | Yes |
| California Proposition 65 Chemical Name | Nickel (Metallic) |
| California Proposition 65 Chemical Name | Chromium (hexavalent compounds) |
| CARB (California) Compliant | Yes |
| Catalytic Converter Included | No |
| 2874 | 0 |
| Category | Exhaust |
| 3728 | Flat Band |
| 1882 | Yes |
| Emission Code | 5 |
| Exhaust Series | American Thunder |
| 11205 | Silver |
| 9874 | Welded |
| 9876 | Angled |
| 1162 | 4.00 |
| 9877 | Angle Cut |
| 1163 | Polished |
| 9881 | No |
| 10104 | 5.25 |
| 1164 | 304 Stainless Steel |
| 1161 | 4 |
| 9878 | No |
| 10980 | Round |
| 9875 | Double Wall |
| 9870 | Dual Out Rear |
| 200 | Natural |
| 353 | No |
| 3390 | Performance |
| 4364 | Yes |
| Heat Shield Included | No |
| 596 | Clamp-On |
| 9871 | 3.00 |
| Mount Type | Uses Factory Hangers |
| 92 | No |
| 11021 | 5.00 |
| 11022 | 11.375 |
| 11023 | 12.00 |
| 11064 | Reflection |
| 11048 | 5.00 |
| 11049 | 11.375 |
| 11050 | 12.00 |
| 11073 | Reflection |
| 9884 | 5.00 |
| 1892 | 11.00 |
| 4372 | 409 Stainless Steel |
| 4373 | Oval |
| Muffler Color | Black |
| 9882 | Black High-Temperature Paint Finish |
| 4367 | No |
| 4368 | No |
| Muffler Included | Yes |
| 9962 | Slip-Fit |
| 4365 | 3.00 |
| Muffler Inlet Location | Side |
| 4366 | 3.13 |
| Muffler Outlet Diameter | 3.00 |
| Muffler Outlet Location | Dual |
| 4375 | 2 |
| Muffler Overall Length | 49.50 |
| Muffler Part Number | Kit Only |
| 4374 | 2 |
| Muffler Series | 60 Series |
| 1174 | Reflection |
| part type | Exhaust System |
| 3530 | 409 Stainless Steel |
| Product Type | Exhaust System |
| Sound Level | Aggressive / Moderate |
| 4377 | No |
| Sub Category | Exhaust and Tail Pipes |
| 4369 | 2.50 |
| 4376 | 2 |
| Tail Pipe Quantity | Dual |
| 4370 | No |
| Tip Logo | Embossed |
| Type | Axle-back |
| Valve Actuator Included | No, Reuse OEM |
| 6014 | Yes |
| 2126 | OEM-Style Valves |
| Warning | California Proposition 65 |
| Pipe Color | Silver |
| 9885 | 12.00 |
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2019 | Ford | Mustang | Bullitt | |
| 2020 | Ford | Mustang | Bullitt | |
| 2018 | Ford | Mustang | GT | |
| 2019 | Ford | Mustang | GT | |
| 2020 | Ford | Mustang | GT | |
| 2021 | Ford | Mustang | GT | |
| 2022 | Ford | Mustang | GT | |
| 2023 | Ford | Mustang | GT | |
| 2018 | Ford | Mustang | GT Premium | |
| 2019 | Ford | Mustang | GT Premium | |
| 2020 | Ford | Mustang | GT Premium | |
| 2021 | Ford | Mustang | GT Premium | |
| 2022 | Ford | Mustang | GT Premium | |
| 2023 | Ford | Mustang | GT Premium | |
| 2019 | Ford | Mustang | GT V8 | |
| 2020 | Ford | Mustang | GT V8 | |
| 2021 | Ford | Mustang | GT V8 | |
| 2022 | Ford | Mustang | GT V8 | |
| 2023 | Ford | Mustang | GT V8 | |
| 2021 | Ford | Mustang | Mach 1 | |
| 2022 | Ford | Mustang | Mach 1 | |
| 2023 | Ford | Mustang | Mach 1 | |
| 2018 | Ford | Mustang | V8 |
