well the two on the side are hole and then the therd one is split in to two why i dont know? but as far as i know polini only do 3 5 and 6 port so i think its a three port evan know its a rep its still based on the three port i think? what would happen if i wos to cut that seperating part out of the therd and have it like the two on the saide? and i like that five port cag looks well good
The cylinder there looks like a copy one, cause the exhaust port is bigger in Dia. and the bolts are father apart like my rep. eng, and the real Polini exhaust I have don't fit. The head cap looks different than mine.