BMW S1000RR 2009-14 Arrow Full Race SystemWhen a new bike is introduced in the market, Arrow normally decides to design an after market exhaust for that bike. Also, Arrow can also decide to fit a new product (new materials, new shape and the like) to an existing bike or to improve a range with the exhaust fitting an older vehicle. In either case, the after market exhaust system is normally designed directly on the bike scooter moped. The bike (in most cases completely original) is placed on a