SC Motorcycle Exhaust Pipe With DB Killer Muffler Motocross Racing Escape For Pit Bike BMW Kawasaki Ducati 51mm 60mm Universal SC Motorcycle Exhaust Pipe With DB Killer Muffler Motocross Racing Escape For Pit Bike BMW Kawasaki Ducati 51mm 60mm Universal. Sale price : $52.26 Category : Motorcycle Equipments & Parts