I received the Wherle flasher today. The only issue with it is that it pulses positive to the orange wire instead of grounding. This requires a minor wiring change to the indicator light in the tach. The red wire (positive) gets disconnected and capped off and is replaced with a ground wire. The one I received even says Made in Italy.
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.