We say custom and we mean it… calibration of ecu incrementally allowing for smooth reliable power.

This car was previously tuned by XYZ and made 371 Bhp/ 595 Nm swipe left to see before and after. Constant overboost with timing pull throughout the rev range causing super knock at 4750rpm.

We set about baseline runs to prove the health of the engine before any mods. The B58 ecu Software in the 540i differs hugely from that in the m140i etc with a reworked exhaust system and a more restrictive GPF.

BASELINE POWER: 333 bhp
BASELINE TORQUE: 471 Nm

📈 NVM Power: 400Bhp
📉 NVM Torque: 624 Nm