A friend of mine bought a set of je pistons(used) from ebay, and he doesnt know much. When he bought them he thought he was getting pistons for a b16 with 10.5:1 compression. I dont think je even makes those for b16, and the pistons came on p72 rods. The pistons also look like they have a dish, more like a turbo piston. it says 81md4 on the bottom side of the piston. Is there anyway I can tell which ones they are? he said he would sell them to me for $100, and they look like they are barley even used.