Re: Thunderbolt IV Ignition Amplifier/Module
There is no point in keeping the TB4 system once it has let go. Switch it to the delco voyager and forget about it. Thunderbolt was a mercury marine designed ignition, used only by mercury. The Voyager system was designed by Delco, and everybody else uses it (including later model mercury, and including automotive). And if the little EST module under the cap fries, they are only like 50 bucks to replace down the line.
It's relatively cheap because there are millions of these sold every year in more than 1 market, not because it's "cheap cheap" quality thing or something like that.
