[maddog]

mike some jdm cars came with 13b's or an upgraded turbo(13 something) but there is no gaurentee

there is a speed limiter on true jdm ecus. i have one and at 120ish mph it cuts out. so just use your stock ecu

also jdm ecus only have one o'2 sensor, so just use your stock ecu

there is no advantage that i know of to using a jdm ecu

for the record the engine doesnt have a speed limiter, its the jdm ecu