Fits:
Arctic Cat: 
2018-2019 M8000 Mountain Cat / Sno Pro / HCR / LTD
2018-2019 XF 8000 Cross Country / High Country / CrossTrek
2018-2020 ZR 8000 Sno Pro / El Tigre / RR / LXR
2019-2020 Mountain Cat Alpha One
2020 Riot 8000
2021-2024 M8000/Hardcore Alpha One/Mountain Cat/Riot/Norseman X/ZR8000 RR/ZR8000 LTD
2021-2024 Blast 4000 All Models
2015-2019 M 6000 / Sno Pro / LTD / ES / SE
2015-2019 XF 6000 Cross Country / High Country / CrossTour / CrossTrek / Sno Pro / LXR
2015-2020 ZR 6000 Sno Pro / RR / El Tigre / LTD / LXR
2014 M 6000
(Does not fit any 6000 Sno Pro R or R models)
2019-2020 Mountain Cat Alpha One
2021-2022 Riot 6000/ZR6000 LTD
Yamaha: 
2021-2024 SX Venom 397cc
2021-2024 Mountain Max 800/Transporter 800
 
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 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.