This is from their new web page "Okay guys we are now getting settled in enough to start taking orders on LT250R and TRX250R inframe and out-of-frame drag pipes and silencers….and only these 4 pipes for the Honda and Suzuki 250’s… These are our famed custom hand-built pipes that have been in high demand but out of production for several years… Call and reserve your name on the list early…call Kent at 573-334-5439"
https://ftzracing.com/atvpg/

their old page: https://ftzracing.com/images/atvpipes07.pdf
prices are Super fat 250r/lt250r: $495 (probably just for the header)
silencer: $118.95
Ceramic coating (chrome) an extra $145 (at least for their drag pipes, in frame might be a little more)
Springs: $4.50ea

Total brand new looks to be around $767.95 -S&H assuming only two springs and the 145 for coating

oh and add another $65 if you need their specialty spigot. I have no idea what they are referring to.