Hello, It's a T3 but it hasn't got the normal rectangluar hole in the middle so the flow from a normal T3 manifold will be really bad, negating any advantage it would have been such a small AR on the hotside. A 0.48 housing on a t3 still won't spool as early as a td04 in most cases. We do use something similar on our 350bhp turbo though with good results. Remember if it was used sucessfully on a bike, it's because they rev so high, it might only be a 1200cc bike, but with 10,000+rpm's at its disposal coming on boost at 5k won't worry the power ranger. Also looks pretty oilly on the hot side, could be knackered.