Yoshimura Signature RS-4 TitaniumExhaust System The RS-4 not only increases power and is light, but it also has a lower centralized mass coefficient to provide better handling. Additionally, an overall improvement to the power delivery was also realized. The RS-4 is pentagonal shaped muffler that features a carbon fiber cone end cap, two staged stepped baffle and striking good looks. A tapered header pipe design is used for optimal flow and performance. The RS-4 muffler features a new front cap design that functions as a polyresonant chamber. This design makes for a quieter muffler with improved mid to top end power. Features Titanium Head pipeCarbon fiber end capYour choice of titanium or carbon fiber muffler sleeves99db sound insert installedNote Optional 94db AMA legal and 96db sound inserts available separately. Note RMX450Z includes Cherry Bomb coax relay bypass module.
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