Why choose ECU remapping over a diesel tuning box?

ECU remapping is far superior to the diesel tuning boxes. When we remap an ECU it optimises various settings and parameters the ECU controls that a tuning box cannot as diesel tuning boxes can only give more fuel pressure. Here at JF Automotive we do sell tuning boxes for certain applications, but these are high end digital chips that have proven results in the dyno cell. Beware of cheap tuning boxes for sale as these can lead to problems or not have any effect on the vehicles performance at all.