The BMW B58 3.0 straight six Twinscroll turbo engine is one of the most impressive power units from BMW currently .
This engine has so much untapped potential that its standard 335bhp and 369lbft are dramatically increased with even the simplest of tuning.
Our Stage 1 upgrade for the M140i/M240i B58 engines offers a huge increase in power and torque throughout the rev range.
Our bespoke ECU mapping has evolved from our development of the N55 engines and MEVD DME .
Tuning of the ECU can be completed through the OBD so no need to remove or open the ECU, we also keep a copy of your original file should you wish to revert.