The NHRC DB Killer Exhaust Noise Reducer is a precision-engineered accessory designed to significantly reduce the noise output of your motorcycle's exhaust system. With a 39.5mm outside diameter, it delivers a secure and stable fit within the exhaust silencer, eliminating vibration and rattling during operation. The screw-in mechanism allows for straightforward installation and removal with minimal tools, making it equally practical for street riding and track use where strict noise limits apply.
Compatible with a broad range of models including Honda Dax, Monkey, Chaly, CRF50, Cub, CY80, and PBR/ZB series, this DB Killer also adapts to other exhaust brands of equivalent internal diameter, extending its versatility to Skyteam, Zenhua, TNT City, and other NHRC-compatible systems.
By forcing exhaust gases through internal channels and perforations, the device absorbs and dampens sound waves, reducing decibel output while maintaining proper backpressure for sustained engine efficiency across all RPM ranges. The result is a noticeably quieter, more controlled exhaust note that supports compliance with local noise regulations, promotes responsible riding, and contributes to the long-term hearing health of both rider and bystanders. A trusted solution from NHRC, a recognized manufacturer in the small-displacement motorcycle segment.
