TOP > Yoshimura product site > MUFFLER > STREET SPORTS > FULL SYSTEM > STAINLESS > R-77J > FULL SYSTEM R-77J / STREET SPORTS
| Main Material | Stainless steel |
| Static Noise Decibel : dB/ Measured at : rpm | 93dB / 4,250rpm |
| Power | +10.0% / 8,600rpm |
| Torque | +10.0% / 7,600rpm |
| Weight | -2.9kg : -43.3% |
SMC （Metal Magic cover）
Parts No.180A-45F-5120
| Weight（STD6.7kg） | 3.8kg |
SSFC （Satin Finish cover）
Parts No.180A-45F-5130
| Weight（STD6.7kg） | 3.8kg |
STBC （Titanium Blue cover）
Parts No.180A-45F-5180B
| Weight（STD6.7kg） | 3.6kg |
