What are you looking for it to do? Actually be a part of the down pipe? I don't think the make a hose that will work in that application. They make stainless steel band clamps for clamping two pieces of pipe together if that's what you are looking for. Any big rig exhaust shop should be able to get them. I know Air Flow Systems has them.
'96 F-250 Extended Cab, long box 4X4, 4" lift, 35" tires
Injectors, Intercooler install kit-GTS Motorsports
Crower rods, H11 Head studs, Cam, Chip Diesel Innovations
Gen II HPOP, chip-Swamp's Diesel
Chip Live Tuned from Power Hungry
Current Chip Tuned by me!
Transmission BTS Sponsored by Nitrous Outlet
custom turbo kit with HX40.
firstname.lastname@example.org in 1/4 mi!