Pirelli Recalls Several Motorcycle Tires Due To Tread Separation Problems - Just because your tire doesn't have a Pirelli logo, doesn't mean it's not affected.
This recall applies to certain Scorpion Trail II and Metzeler Tourance Next, adventure tires.
The Diablo Corsa is a sport tire (nearly streel legal track tire), very different kind. You're as safe as you could be. Just a question: what does the origin country says the sidewall of yours ?
An unfortunate reminder that Pirelli = Metzeler. The first should be made in Italy and the other in Germany.
Actually, my last Pirelli Angel came from China, never ever again.