- 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 | Yamaha | Mountain Max 600 MM600 | |
| 2000-2001 | Yamaha | SX500R | |
| 1997-2000 | Yamaha | Venture 500 VT500 | |
| 1997-1998 | Yamaha | Venture 600 VT600 | |
| 1997-2001 | Yamaha | VMAX 500 VX500 | |
| 1997-1998 | Yamaha | VMAX 600 SX VX600SX | |
| 1997-1998 | Yamaha | VMAX 600 XT VX600XT | |