Upgrade the exhaust appearance and sound of your Harley-Davidson with COBRA 909 Twins 4-inch slip-on mufflers, manufacturer part number 6520B. Designed specifically for the 2018-2021 Harley-Davidson FLSB Softail Sport Glide, these black-finish mufflers provide a clean, stealth-inspired profile while preserving the traditional Harley sound riders expect.
The 4-inch twin muffler outlets angle downward for a refined appearance and a discreet fit on the motorcycle. Each muffler features a scalloped, smooth-rolled outer tip matched with a scalloped inner tip. This distinctive Twin Tip design creates an elegant finished look without visible external screws. A 2.25-inch perforated core helps deliver the recognizable Harley-Davidson exhaust note while maintaining a polished, performance-oriented appearance.
These COBRA 909 Twins slip-ons are 50-state legal and made in the USA. They are built for direct fitment on 2018, 2019, 2020, and 2021 Harley-Davidson FLSB Softail Sport Glide models. The 6520B version features a durable black finish and is backed by a limited lifetime warranty, providing long-term confidence for riders seeking a quality replacement or exhaust upgrade.
Features:
- Fitment: Designed for 2018-2021 Harley-Davidson FLSB Softail Sport Glide models
- Muffler Style: 4-inch twin slip-on muffler outlets with a downward angle for a clean, stealth profile
- Tip Design: Scalloped, smooth-rolled outer tips paired with scalloped inner tips for the COBRA Twin Tip appearance
- Core Construction: 2.25-inch perforated core for a traditional and recognizable Harley-Davidson sound
- Finish: Durable black finish
- Compliance: 50-state legal
- Warranty: Limited lifetime warranty
- Manufacturing: Made in the USA
Fitment:
2018 Harley Davidson FLSB Softail Sport Glide
2019 Harley Davidson FLSB Softail Sport Glide
2020 Harley Davidson FLSB Softail Sport Glide
2021 Harley Davidson FLSB Softail Sport Glide