The BMW Z4 30i 258hp (G29 LCI – 2023 -> …) produces 258 hp and 400 Nm in standard form. With Stage 1 software that rises to about 310 hp and 470 Nm: a gain of 52 hp (+20%) and 70 Nm (+18%).

This is a petrol engine with a displacement of 1,998 cc and engine code B48B20.

Frequently asked questions

How much power and torque does a BMW Z4 30i 258hp gain with Stage 1?

About 52 hp and 70 Nm: from 258 hp / 400 Nm to roughly 310 hp / 470 Nm. The exact gain depends on engine condition and fuel quality.

Figures are indicative and vehicle specific. Check the regulations that apply in your country before modifying engine software.