Evolve Alpha N Remap - BMW E39 5 Series M5This ECU remap is for installation at Evolve or at one of our dealers. Most E39 M5's will produce in the region of 390 395bhp on our dyno. With the ECU remap we generally see anything upto 415bhp on a stock vehicle once an adaptation time period has elapsed, even more on a modified one. 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