PREORDER: This Muffler is currently in development and will start shipping beginning of November 2024

2025 Arctic Cat 858 Catalyst Trail Muffler

Fits:

• 2025 M858 Alpha One/M858 Mountain Cat /ZR 858/Riot 858

Stock Muffler: 18.30 lbs 
GGB Mountain: 5.85 lbs 
Weight Savings: 12.45 lbs

Trail Muffler

Trail Tuned sound

Lightweight muffler with a trail tuned muscle sound. Neighbour friendly and in most applications will meet SAE J2567 stationary test of 88 db, 4 meters away. System fits securely in the original 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 Trail mufflers are specifically designed for use in populated areas and where sound levels are strictly enforced. Sound level increase over stock: (dbA) Idle + 3-6 / Under load + 3-6