hey guys, i've got a HKS GTRS on the RB20 with tuning to be finished on wednesday, so we can see what kind of response/power we get....
a GTRS is basically a GT2871r 52trim, .64, with T3 flange so it bolted on with no hassles, also came with cast 90degree elbow which you *need* and all oil & water lines....pretty much the hassle free way to go
when compared with the cost of getting custom water & oil lines, bolts, washers, cast elbow etc....the HKS GTRS is not that expensive compared to just the garrett GT2871r....