With the introduction of the latest VM Motori diesel engines for the Jeep CRD range, we are able to offer ECU chip tuning upgrades for the Grand Cherokee 3.0 V6 CRD with substantial power and torque increases available. The latest 8 speed automatic transmission works extremely well with our new torque optimised ECU tuning. We are also still doing many ECU remaps on the previous Grand Cherokee with the Mercedes sourced 3.0L V6 CRD engine; an engine which also benefits from clever chip tuning for big power and torque increases. For Jeep CRD ECU chip tuning, please call us on 03 348 7744 or email sales@autopassion.co.nz