Yoshimura Signature RS-2 Stainless Exhaust System - Silver Fitment: YAMAHA YFZ450 04-09 Manufacturer Part # 2375513 All orders are processed and shipped on the same day when possible. Items are shipped from several warehouses to ensure quickest delivery time. Yoshimura exhaust are an excellent balance of sound, look, power and cost. Founded in 1954, Yhoshimura exhaust have proven history of racing pedigree. Quality is second to non. For more information, please visit manufacturer website at www.yoshimura-jp.com/en