VR Tuned BMW ECU Flash Tune BMW X5 xDrive35i E70 N55 11-13

Crank Horsepower Ratings: Stock Power: 302HP | 300ft/lbs Tuned Power: 345HP | 369ft/lbs NOTE: Upon ordering of this ECU Flash Tune, we will send you a Fedex Overnight Label via email. This includes insurance and once we receive the ECU and program it, we will ship it back to you via the method you select at checkout. The ECU cannot be flashed via the OBDII port. This requires the ECU to be mailed in to us to be benched flashed. Bench flashing requires the ECU to be opened. We DO NOT solder or modify your board in any way. Using a electrical contact pins, we tie into the boards programming mode to read and write the file. We do store your stock file if you ever want to revert. Because the ECU must be removed and opened, if you are concerned with warranty, you may want to speak with your dealership. Removing the ECU takes about 20 mins. With the VR Tuned ECU Flash, basic bolt-on performance parts will not require a retune of your ECU. Adding parts such as an exhaust, air intake, intercoolers, plenum, will all adjust with the tune. If you add higher octane fuel, the ECU will adjust accordingly. Anytime you add higher octane, the fuel will burn slower providing your vehicle with improved performance. We never recommend using leaded gas such as C16 as this will destroy your O2 sensors and catalytic converters. Further custom tuning is available with provided dyno sheets or datalogging. Our tuning is used worldwide. We can provide you a tuned file no matter the octane you get or the environment you live in. We do both EU and USA vehicles running 91oct (95ron) or 93oct (98ron). We test and dyno tune on our own cars to make sure what you get is safe, reliable, and gives you the results you want! If you have any questions, please contact our friendly support team!