HO8EX that one in the picture is the exhaust cam and H08 is part number which these are STAGE 2 !
B-Series Stage 1: H01 on intake and exhaust cam
B-Series Stage 2: H08IN on intake and H08EX on exhaust
B-Series Stage 3: S08IN on intake and S10EX on exhaust
B-Series Pro-Series: will have P1+, P2+ or P3+ denoting stages