Vance and Hines Big Radius Full Systems — 2018-2022 Harley-Davidson Softail 18

Vance & Hines Big Radius is a full exhaust system for 2018-2022 Softail models, built with chambered high-flow catalyst cartridges and PCX™ technology to boost torque and deliver a deep, aggressive tone. Precision-cut heat shields provide full coverage and custom-bike styling without compromise on emissions compliance.

Features

• Chambered high-flow catalyst cartridge increases torque
• PCX™ (Power Chamber Exhaust) technology
• 49-state emissions compliant
• Full-coverage precision-cut heat shields
• Complete bolt-on system

Specifications

• Brand: Vance and Hines
• Manufacturer Part #: 46377
• Weight: 25.9 lb
• Category: Exhaust, Mufflers & Tips / Powersports Exhausts
• WARNING: Cancer and Reproductive Harm — California Prop 65. www.P65Warnings.ca.gov

Fitment

Fits 2018-2022 Harley-Davidson Softail 18 models.

Frequently Asked Questions

Does this require a fuel tuner or ECM adjustment?

A fuel tuner is recommended to optimize performance gains from the high-flow catalyst and PCX technology. Check with your dealer for tuning compatibility.

Is this system street-legal?

Yes — it is 49-state emissions compliant. California riders should confirm local regulations before ordering.

What's included in the box?

The complete Big Radius full exhaust system with all necessary mounting hardware and heat shields.

Will this fit my 2023+ Softail?

This system is designed for 2018-2022 Softail 18 models. Newer model years use updated frame geometry — verify fitment with the manufacturer.

Can I install this myself?

Full exhaust systems require header removal and exhaust port work. Professional installation is recommended.

California Proposition 65 Warning

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