Classic Retrofit CDI+ ignition units are the best available. Our boxes are a completely new design.  The electronics can be built into the original CDI case or supplied with our own cast replica case.

Unique double spark at all RPM gives improved power, outperforming other claimed multiple spark systems. Inbuilt voltage regulation to deliver maximum spark, all of the time. Onboard microprocessor for precise timing and fully mappable for custom ignition advance curves. Throughly tested and meets the EMC requirements for CE marking. Yes, we are CE approved, unlike ALL competitor devices.

We believe that CDI+ is the most effective upgrade to a 911 ignition system that money can buy.