Erwin's Tuned BMW Z4 M40i: 500hp Stage 2+ Pure Pleasure

Hi BMW enthusiasts! Some builds are simply next-level. Take this Z4 M40i by Erwin van Hulst from the Revworks group (known for their exclusive Night Drives and car meets). This is no standard roadster: with Stage 2+ tuning by Mosselman on the iconic B58 engine, it delivers an impressive 500hp and 720Nm.

That means pure driving pleasure at the highest level, combined with stylish finishing touches. Erwin likes to share his passion on Instagram (@frozenbmwz4), and the result is a car that looks and drives like a dream.

The power: Stage 2+ Mosselman tuning on the B58

The basis of this build is the 3.0-liter turbo six-cylinder B58 engine, which is already strong as standard (around 340 hp). But Mosselman Turbo Systems takes it to a whole new level with their Stage 2+ software and supporting mods.

What does that mean:

• 500 hp and 720 Nm of torque, a huge leap in performance.
• Better throttle response, more torque low down, and smooth power delivery all the way to the redline.
• Reliable and tested: Mosselman is known for their dyno-tested mappings that don't overload the engine.

This not only makes the Z4 faster, but also much more fun on winding roads or during a Night Drive. Erwin feels the difference every time he accelerates.

The looks: custom black logos and finishing touches

All the original logos have been replaced with custom black versions from BimmerElite. This gives the car a stealthy, clean, and premium look—no more shiny chrome, but pure class.

The icing on the cake:

• M-Style mirror caps with dynamic turn signals: these upgrades give the side a sporty, modern vibe. The sequential LED turn signals flow smoothly from the inside out, making the car even more eye-catching.

Check out our Instagram for this sleek black Z4 M40i with dynamic turn signals and M-style mirror caps.

Part of the Revworks community

Erwin's Z4 is part of the Revworks group: a community of passionate BMW drivers known for their exclusive Night Drives and car meets in the Netherlands. It's a place where builds like this come to life and are shared.

Thanks to Erwin for sharing the photos and videos, it will surely inspire many other drivers to upgrade their own Z4 or other BMW.

Conclusion

Erwin van Hulst's BMW Z4 M40i is proof that good tuning and stylish details can transform a car into something special. With 500 hp, 720 Nm, custom black logos, and those M mirror caps with dynamic turn signals, this is pure driving pleasure in roadster form.

Do you have a tuned BMW or are you dreaming of such a build? Which mod would you do first? Share it in the comments, we're curious to hear your stories!