Description2 Stroke & 4 StrokeExhaust Muffler Wadding / Packing,Silencer Woolfor use all many performance 2 stroke exhausts500mm x 700mmExtra large pack PRODUCT DESCRIPTIONPerformance exhaust systems require silencer wool apart from the original Vespa items (PX/T5/smallframe) over time this can be burned away or becomes clogged up with oil, due to over-rich carburation. The exhaust becomes louder and increasingly ineffective, therefore requiring replacement. It has proved helpful in the past to wrap the wool loosely around the central perforated exhaust exit tube during reconstruction of the silencer unit.
