High Performance CDI Box For Honda ATC 250 R TRX 250 R TRX 250 X 1986 1987 1988 1989 1990 1991 1992 OEM Repl.# 30410-HA2-671 30410-HC0-003 Our PeakRPM technology provides a more aggressive timing curve for increased throttle response. Ride at full throttle with our application-specific CDI box that raises the rev limiter by 1000 RPM. Enjoy fast & easy installation with our plug & play design and included dielectric connector grease. OEM-grade electronic components and printed circuit boards for long-term reliability and performance 90% of ignition issues are caused by a faulty stator. Check product details before buying this part.