K-FACTORY BMW R1200GS ADVENTURE Full exhaust muffler 　ＳＢＬ/OVAL-450-SBL-B Price：Ｒtype　￥346,500（including tax） Oil element ○ Tandem step ○ Normal step ○ Center stand ○ Under cowl - Oil exchange ○ Weight(kg) 4.71kg Sound(db)89db System 2-1 Slip-on muffler 　ＳＢＬ/OVAL-450-SBL-B Price：Ｒtype　￥157,500（including tax） Oil element ○ Tandem step ○ Normal step ○ Center stand ○ Under cowl - Oil exchange ○ Weight(kg) 3.06kg Sound(db)89db System- Oil cooler guard Specs：Stainless Price：Ｒtype　￥12,600（including tax） Ｒtype For R1200GS ADVENTURE,R1200GS