I HAVE A FMF SILENCER OFF A TRX250R. This came in a parts lot and was not tested. I'd suggest new packing at least.  THIS WILL WORK ON ALL YEARS OF THE TRX250R 1986-89. PLEASE SEE PICTURES FOR CONDITION. DON'T FORGET TO CHECK OUT MY OTHER ITEMS FOR SOME MORE GREAT 250R PARTS. THANKS.