Vance and Hines Twin Slash Slip-Ons — 1991-2009 Harley-Davidson Dyna 91

Vance & Hines Twin Slash 3" slip-on mufflers for 1991-2009 Harley-Davidson Dyna 91, featuring PCX™ Technology with chambered high-flow catalyst cartridge. Bolt onto stock headers for a throaty tone and improved mid-range torque without full exhaust system replacement.

Features

• Chambered high-flow catalyst cartridge for increased torque
• PCX™ (Power Chamber Exhaust) Technology
• 3-inch Twin Slash cut tips
• Full coverage heat shields
• Slip-on installation onto stock headers

Specifications

• Brand: Vance and Hines
• Manufacturer Part #: 46838
• Weight: 13.8 lb
• Category: Exhaust, Mufflers & Tips / Motorcycle Slip-On
• California Prop 65 Warning: Yes — Cancer and Reproductive Harm. See www.P65Warnings.ca.gov

Fitment

Fits Harley-Davidson Dyna 91 models from 1991 through 2009. Requires stock head pipes.

Frequently Asked Questions

Will these fit my 2010+ Dyna?

No — this part is designed for 1991-2009 Dyna 91 models. 2010 and newer Dynas require a different slip-on kit.

Do I need a fuel tuner with slip-ons alone?

Not required for basic operation, but a fuel or air recalibration can optimize performance and fuel economy with the increased flow.

Are these street legal?

Check your local noise ordinances. These slip-ons produce a throaty tone and may exceed noise limits in some jurisdictions.

What's included in the box?

The pair of slip-on mufflers with mounting hardware. Stock head pipes remain in place.

Will these increase horsepower?

The chambered catalyst and PCX design improve mid-range torque. Overall horsepower gains are modest without a complete exhaust system and tune.

California Proposition 65 Warning

WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov