Description
Flowmaster’s American Thunder Axle-back exhaust system for the 2015-2018 Ford Mustang is perfect for the person looking for a moderately aggressive sound level outside of the car, while maintaining a mild sound level inside, with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR (Dual Out Rear) emissions-legal system for cars with the 2.3L EcoBoost or 3.7L V6 engine features 3.00in inlet pipes that flow into a pair of Super 10 series mufflers for maximum performance. The system is built out of 409S stainless steel and utilizes 4.00in polished Stainless Steel Flowmaster embossed tips. The exhaust system is covered by Flowmaster’s Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Note: This system fits hardtops and convertibles.
Resources
Installation Instructions
Specifications:
| California Proposition 65 Chemical Name 1 | Nickel (metallic) |
| California Proposition 65 Chemical Name 2 | Chromium (hexavalent compounds) |
| Catalytic Converter Included | No |
| Color | Black |
| Description_ASC | Holley Performance Emission Code 5: 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 |
| Description_ASM | Fits 2015-2018 Mustang Base; Fastback and Convertible Models with 2.3L EcoBoost or 3.7L V6 engine. |
| Description_DEF | Exhaust System Kit |
| Description_DES | American Thunder Axle Back Exhaust System |
| Description_EXT | American Thunder Axle Back Exhaust System; Dual; Dual Rear Exit; 3.0 in. Outlet; Super 10 Delta Flow Mufflers; 409 Stainless Steel; |
| Description_FAB | Aggressive Exterior Exhaust Tone |
| Description_FAB | Axle Back System |
| Description_FAB | Dual Out Rear Exit |
| Description_FAB | Dyno Tuned for Maximum Performance |
| Description_FAB | Incl. Hangers and Hardware For Easy Installation |
| Description_FAB | Limited Lifetime Warranty |
| Description_FAB | Mandrel Bent Tubing |
| Description_FAB | Premium Flowmaster Quality |
| Description_INV | 15-21 MUSTANG BASE 2.3L/3.7L AB AMT 409S |
| Description_KEY | 817748; american thunder kit; axle-back; stainless steel |
| Description_LAB | Made In Logo |
| Description_LAB | Proposition 65 |
| Description_MKT | Flowmaster’s American Thunder Axle-back exhaust system for the 2015-2018 Ford Mustang is perfect for the person looking for a moderately aggressive sound level outside of the car, while maintaining a mild sound level inside, with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR (Dual Out Rear) emissions-legal system for cars with the 2.3L EcoBoost or 3.7L V6 engine features 3.00in inlet pipes that flow into a pair of Super 10 series mufflers for maximum performance. The system is built out of 409S stainless steel and utilizes 4.00in polished Stainless Steel Flowmaster embossed tips. The exhaust system is covered by Flowmaster’s Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Note: This system fits hardtops and convertibles. |
| Description_MKT | Flowmasters American Thunder Axle-back exhaust system for the 2015-2022 Ford Mustang with the 2.3L Ecoboost and 3.7L engines is perfect for the person looking for a moderately aggressive sound level outside of the car while maintaining a mild sound level inside. This bolt-on emissions-legal system for cars features 3.00-inch mandrel-bent inlet pipes flowing into a pair of Super 10 Series mufflers for maximum performance. The system is constructed out of 409S stainless steel for durability, is finished off with large 4.00-inch polished stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Note: The sound level of this system is quieted by the factory resonators. Check out our No Resonator X-Pipe and Y-Pipe kits #81107 and #81108, if you desire more sound from your Ecoboost or 3.7L engine. |
| Description_SHO | Exhaust System Kit |
| Exhaust Type | Dual |
| Exit Position | Dual Rear |
| Exit Style | Straight |
| Heat Shield Attached | No |
| height | 15.9 |
| Inlet Diameter | 3.500 in. |
| Inlet Inside Diameter | 3.000 in. |
| length | 58.0 |
| LTL | N |
| Material | Stainless Steel |
| Mount Type | Flanged |
| Muffler Count | 2 |
| Muffler Part Number | Kit Only |
| Muffler Series | Super 10 Series |
| Muffler Type | Welded Baffle |
| Outlet Diameter | 3.000 in. |
| Outlet Outside Diameter | 3.000 in. |
| Shape | Oval |
| Single or Dual | Dual |
| Sound Level | Moderate |
| System Type | Axle Back |
| Tail Pipe Diameter | 3.000 in. |
| Tip Cut | Angle |
| Tip Diameter | 4.000 in. |
| Tip Edge Style | Cut |
| Tip Finish | Polished |
| Tip Length | 5.250 in. |
| Tip Logo | Embossed |
| Tip Material | Stainless Steel |
| Tip Quantity | 2 |
| Tip Shape | Round |
| Tip Type | Double Wall |
| Title | Flowmaster 817748 Axle-back System – 409S – Dual Rear Exit – American Thunder – Moderate Sound |
| Tubing Diameter | 3.000 in. |
| Tubing Material | Stainless Steel |
| WARNING CA Proposition 65 | Yes |
| WARNING CA Proposition 65 Message | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
| weight | 19.4 |
| width | 12.0 |
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