This NGK Iridium plug came up on eBay and is listed for the 8th-gen VFR. Now, I know iridium is expensive stuff, and the very hard iridium electrode resists wear better than lower-grade metals, resulting in very long service intervals, like 100K miles. I'm not sure how that makes it appropriate for our generally low-usage sport bikes, but that's an individual owner's choice to make.
Like my last post, my beef is with the price; $75.53 for a set of four. I did a quick check on Rock Auto (.com) and can get these same plugs delivered to my home for…wait for it…$48.31.
Once again, caveat emptor.