Active Autowerke BMW B58 HIGH PERFORMANCE SOFTWARE TUNING G-CHASSIS M340I M440I M240I 540I 640I 740I X3M40I 16-031

Please NOTE that BMW dealers now have the technology to flag your vehicle as having the DME modified even if the flash has been removed and replaced with the stock tune and this may impact your cars warranty. You accept full responsibility for the purchase and use of this aftermarket tune for your vehicle. Active Autowerke offers unparalleled performance software. Through careful remapping of the factory BMW DME tables, various elements such as ignition timing, fuel delivery, and part throttles are reworked to create performance gains. The Active Autowerke upgraded software is designed to operate with gasoline that has an average octane rating with full emissions to create a clean burning combustion with good AFRs all within factory specifications. NOTE: Dyno chart for M340 shows stock with AA B58 Catted Downpipe. Active Autowerke's B58 Performance Software bundle includes stage 1, stage 2 and stage 2 without cat tunes! We have an option to include the Femto end user program and cabl