RealTruck Superlift Electronic Geometry Recalibration (EGR) Module for 05-07 Jeep Grand Cherokee WK & Commander XK with Superlift 4" Suspension System

The Grand Cherokee and Commander were some of the first vehicles to include Jeep's Electronic Stability Program (ESP). Creating a true performance lift system with ESP compatibility has been a stumbling block for most suspension manufacturers. Superlift relies on our exclusive Electronic Geometry Recalibration (EGR) module, produced by AEV, to provide the properly calibrated steering input signal to the factory ESP unit. The EGR module also allows for speedometer recalibration, desired when taller height tires and / or different axle gear ratios are installed. The module simply plugs into an existing wiring harness located beneath the dash. Use only with the Superlift Grand Cherokee and Commander 4” lift systems.