- Laboratory flow analysis proves Boyesen dual-stage reeds outperform standard reeds
- They permit greater flow velocity over the entire range of operating pressures
- Increased performance from start-up to top acceleration
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1997-1999 | Ski-Doo | Mach 1 | |
| 1996 | Ski-Doo | Mach Z 779 | |
| 1997-2001 | Ski-Doo | Mach Z 800 | |
| 1997-1999 | Ski-Doo | Mach Z 800 LT | |
| 2002 | Ski-Doo | Mach Z 800 Sport | |
| 1976-1981 | Yamaha | Exciter 440 EX440 | |