According to an Ofna rep, they will exchange the discontinued Ofna Picco engines (Ofna line ONLY-Sport,Comp, and 0-1) IF they can not rebuild it due to parts shortages (picco discontinued making replacement parts long ago and Ofna is all but out of replacement parts now, you do the math), then they will replace it with an equally performing engine from there new Picco (? line, not yet released) upgraded line for $65.

That is my understanding but you'll need to read the FINE print.
It was posted in the ofna.com message board for a while.

I've been saying all along, dollar for dollar, no engine can touch the Ofna Picco line without a $100 head start. These engines ROCK!!!!!