Bottom exhaust designed for 50-70 ccm cylinders. Significantly increases engine performance even with factory cylinders
Compatible vehicles (5)
| Manufacturer | Model | Year |
|---|---|---|
| Aprilia | RX | — |
| Aprilia | SX | — |
| Derbi | Senda | — |
| Gilera | RCR | — |
| Gilera | SMT | — |
No match for that name.









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