That was the only pic that i was given of the engine,its in a S13 that im looking at buying,he recons its a 25det but the plenum looks of a rb26 with a single turbo conversion,the fella im buying it off is a no hoper with cars so just relaying what he was told but thats no 25det iv ever seen,and just wana get a second or 10th oppenion befor i mish 3 hours to go check it out.