HI Guys

Just wanting to tap the collective 3 wheeler world knowledge for info on vintage Phase Five High RPM exhaust for 1985/86 ATC 250r. I am assuming Phase Five the original company was either bought out some other exhaust company or just ended up retiring. Does anyone know what happen to them and maybe who they are now? I ve been looking around for one of the vintage Phase Five High RPM exhaust for 1985/86 ATC 250r for about a year now but haven't had any luck. Any info or leads would be much appreciated.
Thank you.
Regards,
350xman