TOP > Yoshimura product site > MUFFLER > STREET SPORTS > SLIP-ON > STAINLESS > RS-4J > SLIP-ON RS-4J / STREET SPORTS
| Power | with dB-killer | +11.0% / 5,100rpm |
| without dB-killer | +11.5% / 5,100rpm | |
| Torque | with dB-killer | +11.6% / 5,000rpm |
| without dB-killer | +13.4% / 4,300rpm | |
| Static Noise Decibel : dB/ Measured at : rpm | with dB-killer | 94.3dB / 4,500rpm |
| without dB-killer | 97.1dB / 4,500rpm | |
| Weight | -1.7kg / -45% | |
| Main Material | Stainless steel |
SMC （Metal Magic cover）
Parts No.180-43H-5P20
| Weight（STD4.9kg） | 3.4kg |
SSFC （Satin Finish cover）
Parts No.180-43H-5P30
| Weight（STD4.9kg） | 3.4kg |
STBC （Titanium Blue cover）
Parts No.180-43H-5P80B
| Weight（STD4.9kg） | 3.2kg |
