CDI Ignition Rev Box Yamaha YZ250 YZ 250 2002 – 2005 5NX-85540-01

Up To A 4 Horsepower Gain!

Black Box Performance

Ignition CDI Rev Box

Yamaha YZ250

(Fits: 2002 2003 2004 2005)

This redesigned CDI Box/Rev. Kit increases 1,000 RPM over the stock. In addition, our best re-mapped built-in timing curve can add huge horsepower to your machine.

Features:

Improved Timing Curves

Higher Rev Limit (Increases Top Speed)

Overrides for full performance at all times

Increased Spark Energy

Improved Throttle Response

Easier Starting