From the Jett website:

FAN JETTŪ .50 R/C w/o pipe $275.00
Order Here

Short Pipe (with engine order) $25.00
Order Here

Short Pipe w/o engine (also fits K&B) $50.00
Order Here

Long Pipe (also fits K&B) $60.00
Order Here

Remote Needle Valve Assy (not R/C controlled) $25.00
Order Here

One-Half Inch (12mm) front end extension (for Turbax I spacing) $5.00


I'm just dreaming about DF models at this point in time so there may be a reason this engine gets no attention.