Took another Ford Focus ST to a powerful new level with our VR Tuned ECU Stage 1 upgrade. This car was already equipped with the Agency Power catback exhaust and wanted to get more performance through the RPM curve. The VR Tuned flash is all done through the OBDII port with our iFlash unit as seen here. Once we read out the car, we can then create a new file to flash to the car. Improving torque and horsepower, the throttle response is more aggressive and the power through the mid to top end is much stronger. The VR Tuned is a great ECU flash upgrade for the Focus ST ECOBoost engine giving you 40-50 more horsepower! Order your Ford Focus ST Tuning Here. Leave a Reply Cancel ReplyYou must be logged in to post a comment.