The Angel Tuning difference is not only in our level of service but in the fact that our maps are not 'off the shelf' items. We create custom 'maps' that we can tailor to your specific requirements. Hello, The JB is a piggy back unit. With this, the process is that information goes into the unit, the unit distorts it, and then puts it back into the ecu to achieve some desired output. A couple of weeks ago, I received an email from some of the folks at BMWs M Performance Parts division. Weve worked with them before on a few other projects, so we werent unaware of what. BMW M GmbH (previously BMW Motorsport GmbH) is a subsidiary of German car manufacturer BMW AG.. BMW M, "M" (for Motorsport) was initially created to facilitate BMWs racing program, which was very successful in the 1960s and 1970s.As time passed, BMW M began to supplement BMW's vehicles portfolio with specially modified higher trim models, for which they are now most known by the general. Chip tuning for BMW cars by the test winner. The chip for more driving pleasure. Up to 30 percent more hp and Nm. Easy to install. Each price is the suggested retail price and is subject to change. Price excludes installation and taxes. Check with your authorized BMW center for complete accuracy of information and product availability. 1. The indicated performance gains and fuel efficiency gains are target values. Deviations upwards and downwards are possible. These may, for example, be caused by standard factory model variations, the quality of the fuel used, the maintenance and ageing condition of the vehicle or the driving habits. BMW M42B18 engine reliability, problems and repair. BMW M42 is a 4-cylinder straight engine which was developed on base of M40B18.The main difference between two motors is the fact that new version has more efficient aluminum 16-valve cylinder head. MHD Flasher is the first Android handheld application to bring ECU tuning and monitoring to the BMW N54, N55, S55, B58 and N13 engine. The MHD Flasher reveals the immense margin of power BMW left on the table with the N54, N55, S55, B58 and N13 motor, while still retaining the sophistication of the original engine management program. BMW TUNING BY ANGEL TUNING. This is our designated BMW tuning page. Below you will find an example of our BMW Tuning package. Links to our BMW Petrol tuning and BMW Diesel tuning performance gain tables are here BMW DIESEL| BMW PETROL If you would like a quotation on a performance package for your BMW then get in touch on 01295 758 739 and we will be able to talk you through the options that.