i have an ftz, shearer makes them, and yes there are off the shelf drag pipes...ftz's are all the same unless they are ordered for a specific motor setup....im pretty sure D AND D racing in lowville, ny has a drag pipe too, and the atc and trx drag pipes are the same as long as they are out of frame.
1985 Honda ATC250R drag trike with s/t kit and full drag CR hybrid motor and drag chassis...
1986 Honda ATC250R daily rider fully modded engine, +4 swinger,etc...
1997 Polaris Storm 800 triple, boyesen reeds, dg individual silencers, 240 studs, 123mph on radar...