US YAMAHA フルエキゾーストマフラー GRAVES MOTORSPORTS(TM) フルレース仕様 エキゾーストシステム【Full Race Spec Exhaust System by Graves Motorsports(TM)】■商品番号 ABA-0SS56-20-61
■商品概要 Stainless Steel/Carbon Fiber Graves Motorsports hand-made-in-the-U.S.A. full exhaust systems for the Yamaha YZF-R6. This high performance exhaust system features head pipes， billet aluminum flanges， and silencer. O2 bung is provided for use with the Yamaha O2 Sensor. The “Race Spec” full exhaust system includes an added cross-over head pipe feature along with a more aggressive head pipe taper. These features allow for an increased throttle response and low-to-mid range power delivery without affecting the peak power output. The exhaust system’s cores are altered in size and taper length specifically for the R6. By doing so Graves can maximize the performance of the exhaust system. Graves Motorsports™ products are intended for racing motorcycles only and are not applicable for use on pollution-controlled street/ highway vehicles. Graves Motorsports™ products are sold for show or closed-course competition only.