Think about this really long and hard. Cosmic rays are focusing only on Toyota vehicles? No vehicle out there has the proper shielding. And just like ReconRat said, it wouldn't change an entire data stream. This whole thing is a crock of shit.
The link I gave you? I'm assuming yes by the listing. I cross checked it with the parts fiche and it looks like the same part. You still accept risk with buying anything on Egay though. http://www.hdlparts.com/fiche_section_detail.asp?section=123817&category=MOTORCYCLES&make=HONDA&year=1983&fveh=2958