Most likely Nelson locked the tune. Its a feature in Hptuners that keeps people from changing the tune that he put on it.
Most likely Nelson locked the tune. Its a feature in Hptuners that keeps people from changing the tune that he put on it.
ECSB 2kSierra 2wd 4.8L-K&N-HPtuners-Calspeed LT's-Magnaflow-Tahoe20's-HankookRH06
waiting to go in... 3.90s, 214/220cam
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