The Cobra Speedster 909 Black Exhaust System, manufacturer part number 6715B and vendor part number 6715B, is designed to deliver a distinctive combination of performance, sound, and style for select Harley-Davidson Softail motorcycles. This black exhaust system features Cobra’s signature stepped body design, beginning at 3 inches at the front and expanding to 3.5 inches at the rear for a purposeful appearance and effective exhaust flow.
Inside, the Speedster 909 uses 2-inch constant-velocity cores bonded with e-glass and stainless-steel mesh. This construction is engineered to produce a strong, refined exhaust note while supporting responsive performance. The black finish complements custom and factory-inspired builds, making it a practical upgrade for riders seeking enhanced visual appeal and Cobra performance.
Feature: Designed for select 2018–2019 Harley-Davidson Softail models, including the FXFB Softail Fat Bob, FXFBS Softail Fat Bob 114, FXBR Softail Breakout, FXBRS Softail Breakout 114, FLFB Softail Fat Boy, FLFBS Softail Fat Boy 114, and FXDR Softail Power Cruiser. Fitment should be verified against the motorcycle’s exact model and configuration before installation.
Feature: Cobra Speedster 909 black exhaust system with 2-inch constant-velocity cores, bonded e-glass, and stainless-steel mesh. Feature: Manufacturer and vendor part number 6715B. Feature: Backed by a limited lifetime warranty. Feature: Made in the USA. The Cobra 6715B provides a direct-fit-style exhaust solution for compatible Harley-Davidson Softail applications and is intended for riders who want a balanced blend of styling, sound, and performance.
Features:
- Performance-focused Cobra Speedster 909 exhaust design
- Black finish for a clean custom appearance
- Stepped body design measuring 3 inches at the front and expanding to 3.5 inches at the rear
- 2-inch constant-velocity cores with bonded e-glass and stainless-steel mesh
- Fits select 2018–2019 Harley-Davidson Softail motorcycles, including Fat Bob, Fat Boy, Breakout, and FXDR models
- Manufacturer part number 6715B
- Vendor part number 6715B
- Limited lifetime warranty
- Made in the USA
Fitment:
2018 Harley Davidson FLFB Softail Fat Boy
2018 Harley Davidson FLFBS Softail Fat Boy 114
2018 Harley Davidson FXBR Softail Breakout
2018 Harley Davidson FXBRS Softail Breakout 114
2018 Harley Davidson FXFB Softail Fat Bob
2018 Harley Davidson FXFBS Softail Fat Bob 114
2019 Harley Davidson FLFB Softail Fat Boy
2019 Harley Davidson FLFBS Softail Fat Boy 114
2019 Harley Davidson FXBR Softail Breakout
2019 Harley Davidson FXBRS Softail Breakout 114
2019 Harley Davidson FXDR Softail Power Cruiser
2019 Harley Davidson FXFB Softail Fat Bob
2019 Harley Davidson FXFBS Softail Fat Bob 114
2020 Harley Davidson FLFB Softail Fat Boy
2020 Harley Davidson FLFBS Softail Fat Boy 114
2020 Harley Davidson FXBRS Softail Breakout 114
2020 Harley Davidson FXFBS Softail Fat Bob 114
2021 Harley Davidson FLFBS Softail Fat Boy 114
2021 Harley Davidson FXFBS Softail Fat Bob 114
2022 Harley Davidson FLFBS Softail Fat Boy 114
2022 Harley Davidson FXFBS Softail Fat Bob 114
2023 Harley Davidson FLFBS Softail Fat Boy 114
2023 Harley Davidson FXBR Softail Breakout
2023 Harley Davidson FXFBS Softail Fat Bob 114
2024 Harley Davidson FLFBS Softail Fat Boy 114
2024 Harley Davidson FXBR Softail Breakout