download the hypertech tuner sftware to your computer, plug the tuner in wia USB port, make sure it has the moat current update. With the ignition off plug the tuner in to the OBD port under the dash to the left of the steering wheel and follow the directions on the hypertech.
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2007 WK Laredo
OME HD / Bilsteins / RRO UCA / Toyo AT2 on Moabs / Volant / Viper TB / Powerwire / TB Ground / Sprint Booster / JKS Rear Discos / Asfir Skid / Apsen Creek Skid / Front Shackles / Rear Sliders / Cobra CB / S4xC Antenna Mount w/ 2' Firestix