its a B-1 62inducer I think 71 exducer 13cm exh housing. I love it but Im guna be pulling in the 2.6 class this summer so I need a 66. If your still interested I can double check on the exducer and see what else I could offer. Its a great charger. Very few miles on it. It lites quick and pulls hard the whole way. I would put it on my dually but that has bigger plans comming. Where are you located.