Cobra 909-TWINS 4" SLIP-ONS CHROME TRI-GLIDE 09-22 - 2009-2025

Cobra 909-Twins 4" slip-on mufflers in chrome for Harley Tri-Glide and V-twin cruisers, built with dual 2.25" perforated cores for classic Harley tone. Twin-tip design with scalloped inner and outer tips delivers a clean, stealth profile—50 State legal and made in the USA.

Features

• 4" dual muffler tubes with downward-angle exit
• Twin-tip design: scalloped inner and outer tips, no visible screws
• 2.25" perforated core for traditional Harley sound
• Chrome finish
• 50 State legal
• Made in the USA
• Limited Lifetime Warranty

Specifications

• Brand: Cobra
• Manufacturer Part #: 6303
• Length: 31 in
• Width: 11.13 in
• Height: 5.56 in
• Weight: 21.69 lbs

Fitment

Fits V-twin motorcycles, including 2009-2025 Harley-Davidson Tri-Glide and compatible cruiser models.

Frequently Asked Questions

Are these slip-ons that fit my stock headers?

Yes — these bolt onto your existing header pipes in place of factory mufflers. No welding or fabrication required.

Will these fit my 2009-2022 Tri-Glide?

Yes. This part covers 2009-2025 Tri-Glide and other compatible V-twin models.

Are they street legal?

Yes — 50 State legal configuration suitable for street riding. Local noise ordinances vary; check your area.

What sound do I get with the 2.25" core?

The 2.25" perforated core delivers the traditional, recognizable Harley cruiser tone without high-pitched drones.

Do I need a tuner with these slip-ons?

Slip-ons alone typically do not require ECU remapping, though a fuel/air recalibration may improve mid-range response depending on your other modifications.