Vespa Exhaust Auspuff bgm PRO MRB BigBox
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The Big Box bgm PRO is a powerful all-round racing muffler looking looking like the original exhaust and sounds and looks just as harmless.
Whether original or already highly tuned engine: The Big Box brings true power and revving without being flashy.
- original appearance
- Very quiet (sound somewhat muffled as original)
- Revving high torque &
- Peak power as a resonant exhaust
- No power hole
- Wide speed range
- more top speed
- 200cc version with O-ring flange and groove retaining tabs on the manifold cost
The bgm BigBox is for each engine. The exhaust body has more volume than the original exhaust.
