- Stage 1: stock engine/filters, stock/modified pipes; about a 5% power increase
- Stage 2: stock/mild modified engine, stock/modified pipes, stock/modified filters; about an 8% power increase
- Stage 3: stock/mild modified engine, stock/modified pipes, individual air filters; driveability may be compromised, N/A for some motors; about a 10-15% power increase
- Stage 7: race-only, high rpm, not for street use
- Increases power and drivability
- Fully adjustable
Yamaha -- XV 700 Virago -- (1985, 1984, 1981, 1983, 1982, 1986); Yamaha -- XV 750 Virago -- (1982, 1981, 1983, 1985, 1984, 1986); Yamaha -- XV 920 Virago -- (1982, 1983, 1986, 1985, 1981, 1984)
