I can’t see how. Bikes before yours don’t have it: bikes after yours don’t have it. You sure someone just didn’t replace it properly??
Well if someone just replaced the hose they would also have to replace the hose fitting on the head. The standard fitting requires the hose to connect vertically coming up from the bottom. This crazy hose connects to the head horizontally. Seems like a lot of trouble for a hose especially when it's still readily available from Ducati. That said, who knows for sure. Maybe the only way to know for sure is to remove the head and look at it though I am not sure how the II variant head is different.
All I know for sure is that the II variant has a different part # for the head. The cylinder head part # for the 1999 SPS and SPS II is 30120791A and 30120871A respectively. I have been unable to determine what the differences between the two heads are and if there are any other external differences aside from the hose, pipe, and fitment angle.
Could that simply be they had something superseded due to potential fault or other reason? And why would that not carry on through to next variant? Or was the part a race part that was ordered separately as part of a race package? US models always seem to have some quirks in names and parts as emissions etc very different to that in Europe
