Cobra POWRFLO 2-1 W/BILLET TIP BLACK FLH/FLT 17-22 - 2017-2025 — Harley-Davidson Road King Special, Tri Glide Ultra Classic, Street Glide (2017-2025)

Cobra Powrflo 2-into-1 exhaust system for 2017-2025 Harley-Davidson Touring models, featuring a 2.5-inch collector header and 4.5-inch muffler body with El Diablo billet tip. Delivers increased power and torque with a deep, throaty rumble while the sealed sound-absorbing core keeps tone controlled.

Features

• 2.5-inch collector header for improved flow
• 4.5-inch muffler body with sealed sound-absorbing material
• El Diablo style billet tip finish
• 222-degree heat shields plus collector heat shield
• Stainless steel construction resists blue discoloration
• Made in the USA
• Limited Lifetime Warranty

Specifications

• Brand: Cobra
• Manufacturer Part #: 6451RB
• Type: 2-into-1 exhaust system
• Finish: Black with billet tip
• Length: 40 in
• Width: 18 in
• Height: 9 in
• Weight: 35.53 lbs

Fitment

Fits 2017-2025 Harley-Davidson Touring models (FLT).

Frequently Asked Questions

Will this work with high-lift cams or big-inch motors?

This system is designed for mild cams and stock-displacement engines. Monster motors may require different tuning and exhaust flow characteristics — check with Cobra for compatibility.

Does the tip or header turn blue over time?

No — Cobra guarantees the entire system will not blue with normal care and maintenance. The stainless steel construction holds its finish for years.

What kind of sound does it produce?

A deep, throaty rumble. The sealed pillow of sound-absorbing material in the muffler controls decibels while keeping the tone aggressive.

Is this system street legal?

This is a performance exhaust designed for street use, but local noise ordinances vary. Check your state and city regulations before installation.

Do I need to tune my bike with this exhaust?

Mild tuning adjustments may improve performance, but the system works without a mandatory retuning for stock motors.