Koronis 331-209 Nickel Chrome Steel Rumble Pack Exhaust Silencer for Polaris Snowmobiles

The Koronis 331-209 Rumble Pack is a performance exhaust silencer system designed specifically for Polaris snowmobiles. This aftermarket exhaust upgrade features a unique dual-stage acoustical design that delivers more power while significantly reducing weight compared to stock systems.

Key Features:

• Dual-stage acoustical design - industry first technology for optimized sound and performance
• Adds up to 5 additional horsepower depending on application
• Reduces weight by up to 9 lbs compared to stock exhaust
• Durable nickel-chrome plated steel construction for long-lasting finish
• Attaches directly to stock exhaust pipes with included hardware
• No belly pan modifications required for installation
• Complete installation instructions included

This Rumble Pack silencer kit provides an easy bolt-on performance upgrade that improves both power output and handling characteristics by reducing overall sled weight. The nickel-chrome plating provides excellent corrosion resistance for years of reliable use in harsh winter conditions.