Selling my b-pipe as I bought a PFP. I bought the headpipe already bored to 50mm. Found a brand new mariner manifold (now has 1 season on it) then had Jetmaniac bore to match headpipe. Mariner mani is identical to fp mani just says mariner. I believe the chamber is from a 650 but not sure. Will come with hose clamps, 1 season old coupler, 1 season old headpipe to mani gasket, basically everything seen in picture. All water screws turn and mani is tapped for dual cooling. $650 plus fees and shipping. Ran great on my 701.