RE: Picco 45 DF
the two pipes in the pics with the .45 picco , one is a picco part fine for lower nitro or none..and has much less volume, the other pipe is a macs marine pipe with double cone angles and is used with 15-65 percent nitro fuels..the double angle on the front cone really wakes the pipe effect up, during initial testing the boaters were shocked at the transition and better top end.