PRO CIRCUIT
PRO CIRCUIT 1984-1990 YAMAHA YZ490 304 SILENCER SY84490-304
PRO CIRCUIT 1984-1990 YAMAHA YZ490 304 SILENCER SY84490-304 . The vendor part number is SY84490-304 . Please read title carefully to know what you are getting. Catalog decription…
304 Silencers
The 304 silencer is recommended for most two-stroke applications. The slightly longer body offers reduced noise output when compared to the R-304. The brushed aluminum body, stainless steel inlet tube and end-cap give you a silencer that looks as good as it performs.
R-304 Silencers
The compact design of the R-304 Silencer offers optimum performance gains and is recommended for closed-course racing only. Hex head screws are used to secure the inlet cap and can be removed easily for quick re-packing of the silencer.
Type 296 Spark Arrestors
The Type 296 Spark Arrestor is specially engineered with an internal metal baffle, chambers and sound absorbing materials for a muffled exhaust sound and no loss of motor performance. The desired sound level is at or near 96dB on most models.
