This two-wire adapter provides an RPM signal to a Sniper 2 ECU from a Pro-Billet distributor or magnetic crank trigger when timing control isn't being used, making for a quick, straightforward install.
Specifications:
- Harness Type: Ignition Adapter, Tach Input Only
- Compatibility: Pro-Billet Distributor or Magnetic Crank Trigger
- Connector: Black connector with purple and green wire
- Installation: Two-wire
- Color: Black
- Warning: California Proposition 65
- Part Number: 558-330
Plugs into the connector labeled "IGNITION" on the main harness. The yellow/black lead connects to the ignition box's "Tach Out" terminal — do not connect directly to the ignition coil. Refer to the installation instructions for full details.
FAQ
What does this adapter do?
It supplies an RPM signal to the ECU from a Pro-Billet distributor or magnetic crank trigger for a Sniper 2 system that isn't using timing control.
How many wires does installation require?
Two — purple and green leads.
What's the difference between 558-329 and 558-330?
The 558-329 is a one-wire adapter for CD ignition boxes; the 558-330 is a two-wire adapter for Pro-Billet distributors or magnetic crank triggers.

