Honda TRX400ex 1999-2004 

      +3 HP High Performance CDI +1000 RPM

Procom Engineering High Performance CDI

Increased rev limit by +1000 RPM 

Aggressive advance curve for better acceleration and +HP

Increased Spark Energy 

Improved Throttle Response

Easier start-up in most cases

Procom Engineering 90 Day Warranty

Easy to install plug-in module replaces the factory CDI with a Procom Engineering high performance CDI. Works great with stock to highly modified engines. Procom Engineering 90 day warranty against defect.

Procom Engineering is the leading CDI manufacturer in the powersports industry. Many of the CDI’s and ignition controllers on the market sold under other brand names are produced by the leader Procom Engineering. They are repackaged with another manufacturers name on the box.