Thats some good power. Out of interest, when "Pro" is used in conjunction with HKS turbos does it generally just mean they are internally gated or are there some other important differences?
Im coming from a CA18DET so i just assume changing the head gasket is a necessity for running high boost ....is it not that necessary with RB25DETs? Also, the reason im after the .87 A/R is mainly so that there is room for expansion later in case I want to go higher (lets say i break my engine then get it built). I saw a thread somewhere on here where someone was making about 400rwhp but on the .63 version and he actually said he preferred the .87 as the .63 was to responsive (i like that nothing, nothing, BAM! feeling). As long as full boost is before 4k I would be happy.