I have a 99 formula 382, looking for bolster seat bottoms ( mine are missing) looking for the part that you sit on (coushin)

still looking

Call Formula, they may have a drawing or can make you one. If you have McLeods - that may be your only option (they went out of business and the newer style seat/parts are very hard to come by)

1412759tag ea cush fastech bolster st btm $159.85
270907 ea bolster abs/vinyl center panel $316.85
273156 ea bolster molded vinyl lowerside $147.87
273157 ea bolster molded stbd panel 2016 $147.87