As I recall, those are the jets that come with "The Freak" airbox elimination kit.

It dynoed around 64bhp if I remember right.

But the bhp isn't the point, really. The Beemer I ride now has 109bhp (see pic)




But the exhaust note does not stir anything (much less my soul).

But hey, the wife likes it better - so I trade the stirring of my soul for a little tranquility in the family [sigh].

-BT

"Speedmaster" is a title not a name, - and the title is not plural.