Vance and Hines Big Shots Full Systems — 1991-2005 Harley-Davidson Dyna 91

Vance & Hines Big Shots Staggered full exhaust system for 1991–2005 Harley Dyna, engineered with hidden crossover and PCX™ Technology for a tuned tone and torque boost. Dual-style appearance with one-piece heat shields and CNC-billet end caps deliver the long, low look without sacrificing 2-in-1 performance.

Features

• PCX™ (Power Chamber Exhaust) chambered catalyst technology
• Hidden crossover design (Power Chamber) for torque delivery
• CNC-machined billet end caps
• Full-coverage heat shields
• 49-state emissions compliant
• 27 lbs total system weight

Specifications

• Brand: Vance and Hines
• Manufacturer Part #: 17911
• Weight: 27 lb
• Category: Exhaust, Mufflers & Tips / Powersports Exhausts
• Emissions: 49-state compliant
• WARNING: Cancer and Reproductive Harm — California Prop 65. www.P65Warnings.ca.gov

Fitment

Fits 1991–2005 Harley-Davidson Dyna models with the 91 cubic-inch engine.

Frequently Asked Questions

Will this fit my 2006+ Dyna?

No — this system is designed for 1991-2005 Dyna models. 2006-and-newer Dynas require a different part number.

Do I need to tune my bike after installing these?

Yes, a fuel map adjustment is recommended to optimize torque delivery and prevent running lean with the new exhaust.

What's the difference between this staggered design and a true dual?

This has the visual look of true duals but features a hidden crossover chamber for 2-in-1 performance characteristics and better low-end torque.

Are these street legal?

Yes — this system is 49-state emissions compliant and street legal. California riders should check local noise ordinances.

What's included in the box?

The complete bolt-on full exhaust system with all mounting hardware and heat shields.

California Proposition 65 Warning

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