Cobra 1218 Tri-Flo 4.5-Inch Slip-On Mufflers Chrome GL1800 F6B

The Cobra 1218 Tri-Flo 4.5-Inch Slip-On Mufflers deliver a deep, mellow exhaust note that perfectly complements the smooth power delivery of the Honda Gold Wing GL1800 and F6B flat-six engine. Crafted from mild steel and finished in a four-step chrome-plating process, these slip-on mufflers are as visually striking as they are sonically refined.

The Tri-Flo design starts as a 4-inch round body at the head pipe inlet, then gracefully expands into a 4.5-inch tri-oval shape at the rear — measuring 4 inches tall by 5.75 inches wide — before being finished with beautifully machined chromed aluminum tips. This progressive shape gives the mufflers a bold, custom appearance that integrates seamlessly with the Gold Wing's touring profile.

Key Features:

• Deep, mellow exhaust tone that enhances sound without excessive volume
• 4-inch round inlet expands to 4.5-inch tri-oval rear body
• Machined chromed aluminum end caps for a premium finish
• Welded from mild steel with a four-step chrome-plating process
• Proprietary acoustical engineering for enhanced low-frequency tones
• High-flow core design for improved horsepower and torque
• All necessary mounting hardware and instructions included
• Made in the U.S.A.
• Limited lifetime warranty

Installation is straightforward, with all required mounting hardware included. The improved exhaust note retains the Gold Wing's remarkably civilized character — passengers will notice the richer tone without being overwhelmed by volume. Not legal for sale or use in California on pollution-controlled vehicles.