Return JA120 OLD 3W-120B2 Old Style Twin Muffler Pair Price : $185.00 Quantity : **Add To Cart JA120 Bolt-On Muffler Fits: 3W-78 /85 /100   JA100 Specifications A Chamber Length 4.75" B Chamber Diameter 2.00" C Downstack Length 5.00" D Downstack Diameter 1.00" E Mounting Offset 0.25" F Downstack Offset 3.50" S Smoke Fitting YES   Weight 11.5 Oz     Specifications Subject To Change Without Notice Performance Mufflers Tig welded for super strength Extra quiet perforated baffle design reduces noise without reducing performance