Cold air intake system for BMW G29 Z4 M40i B58 (carbon)

Developed specifically for the turbocharged B58 — power, temperature control, and an inspiring sound.

Eventuri Intake System for BMW Z4 M40i (G29) with engine B58 created to eliminate the limitations of the factory system. The main goal is to provide lower air resistance at the turbo inlet, while maintaining low intake air temperatures (IAT). Thanks to fully sealed design, the intake does not draw heated air from the engine bay, even at high temperatures.

The system features an additional cold air intake from the wheel arch area and a gold heat reflector on the shield, minimizing heat radiation from the manifold. The standard corrugated tube has been replaced with a smooth Ø111 mm prepreg carbon tube, which smoothly tapers to the turbine inlet — all for the sake of laminar flow without turbulence.

📈 Key Benefits:

• Greater air volume and lower pressure loss

• Sealed design — reduced IAT and heat soak

• Smooth and unobstructed flow to the turbine

• Induction and turbine sound became deeper and clearer

• Ready for Stage 1–2 tuning

📦 Kit Contents:

• Prepreg carbon airbox with dual air intakes

• High-flow dry filter (ISO tested)

• Ø111 mm carbon intake tube

• Heat shield with gold reflector

• CNC mounting for temperature sensor and breather

• Silicone coupler with OEM clamps

• Stainless steel mounts

🛠 Compatibility:
✔️ BMW Z4 M40i (G29) with engine B58