if theres anything that ive learned, its that a quick street car doesnt have to have huge max power, but rather good, average power. Therefore, on the street a 250rwk gts-t with a highflow, or a GTRS or something similar is going to be more responsive than a laggy 300rwk equivalent. Your not going to use 300rws on the street. I say for the street, even the basic mods with standard turbo, such as ECU, exhuast, 12psi of boost and a good intercooler is enough. If anything dont compromise response for max power.