Arctic Cat
2025-2026 858 Catalyst
Arctic Cat
2025-2026 858 Catalyst
Confirm this fits your machine in the tab below before ordering.
MUFFLER TYPE
- Secure payments
- 2025 M858 Alpha One/M858 Mountain Cat /ZR 858/Riot 858
Stock Muffler: 18.30 lbs
GGB Mountain: 4.80 lbs
Weight Savings: 13.5 lbs
This muffler is a super lightweight, straight through flow design with an aggressive exhaust note. Sound levels would be considered as "Race" type are very loud when on the throttle. System fits securely in the stock location using stock mounts and is tested and guaranteed to provide performance levels as good as or better than stock.
GGB Advantage:
- Performance Guarantee
- Increased throttle response
- Aggressive exhaust note
- Huge weight savings
- No fuel mods
- Simple install
- Secure fit
Fuel and clutching mods are not necessary prior to installation. GGB two stroke mufflers are flow benched developed for back pressure against the stock muffler and will perform efficiently in any application where the stock muffler would be used.
GGB Mountain mufflers are designed to be used in areas where increased sound levels are not an issue. These mufflers are loud when you open the throttle. Please use accordingly. Sound level increase over stock (dbA) Idle + 4-6 / Under load + 10-18.
