Return JA70iB2 3W-70iB2 - Twin Muffler Pair for New Rear Carburetor Version Price : $165.00 Quantity : **Add To Cart JA 70iB2 Bolt-On Muffler Fits: 3W-70iB2                     Information will be updated soon. JA70/80 Specifications A Chamber Length   B Chamber Diameter   C Downstack Length   D Downstack Diameter   E Mounting Offset   F Downstack Offset   S Smoke Fitting     Weight       Specifications Subject To Change Without Notice Performance Mufflers Tig welded for super strength Extra quiet perforated baffle design reduces noise without reducing performance