Yes...its just knowing whats going on with the motor. Which allows you to improve the motor in the future, And is also very very helpful for mods and trouble shooting. A piggyback fuel computer i think is what your looking for...It adjusts the air meter/o2 sensor signal to set the air/fuel at whatever you want. Im not too sure...because ive never used one tho. Just researched em up.
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Yay the supra assistant is gone!!! WEEE!!
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