You have to buy the sensor for EGT's ($100-$130) but boost along with everything else can be read from the OBD port.
Unfortunately the boost function may not be accurate. I guess aftermarket programming increases boost then hides it from the ecm to keep it from defueling. Since the insight reads directly from the ecm it only sees what the programming shows it.
Since I'm not shooting for the stars power wise I'm not worried if the boost is off. I figure accurate or not I'll at least have a baseline to watch and if that changes I'll know something is up.
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