The Graves Motorsports™ Cat. Eliminator Exhaust System is a perfect mix of form and function. Eliminating the catalytic converter from the stock exhaust removes significant weight， reduces stored up exhaust heat， and increases the flow of exhaust gases. All that combines to equal POWER. The system features mandrel-bent tubing and silencers with tapered conical outlets. An O2 bung (with plug) is provided for use with the stock Yamaha O2 sensor. Graves- spec packing produces an exhaust note like no other and holds up longer to the extreme conditions of a high-revving motorcycle. NOTE: If the EXUP System is being eliminated， it is recommended that the Graves Motorsports EXUP Eliminator， sold separately， be installed to prevent activation of the check engine light. For closed-course competition only. 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.

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