Add the appropriate number of gaskets to your order per the below guide
991 Street Headers - (4) 3"
991 Race Headers - (2) 3"
991 Crack Pipe (for Dundon Headers) - (2) 3"
718 Street/Race - (4) 3" & (4) 2.5"
981 Club Sport Race Headers - (2) 2.5" Expanded Gaskets
718 Crack Pretzel - (2) 3"
997 Street/Race Headers - (2) 3"