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When I bought my '06 GTO with automatic tranny, I took it to the track and was getting beat by stock LS1 f-bodies (great cars by the way). This didn't seem right to me, I sent the PCM to a tuner (Texas Speed & Performance) to have restrictions such as torque management removed from the programming. I took it back to the track, I dropped .8 seconds in the 1/4 mile, and was now beating ls1 f-bodies.
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