It's basically stupid boltons or supercharger nothing in between really. Some years can be tuned with hptuners and most with SCT.
It's basically stupid boltons or supercharger nothing in between really. Some years can be tuned with hptuners and most with SCT.
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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