Carbon Fiber Air Intake System for BMW X3 M40i (G01) / X4 M40i (G02)

Designed specifically for the new generation B58D engine. Uncompromising performance.

This intake system is engineered for the BMW G01 X3 M40i and G02 X4 M40i equipped with the B58D engine, and is designed to address a key issue in this model—high thermal load in the engine bay due to the close proximity of the exhaust manifold.

🔧 Key Engineering Solutions:

• Fully sealed design — prevents hot air from entering the turbocharger

• Gold-reflective heat shield — minimizes heat radiation from the exhaust manifold

• Maximised airbox volume — accounts for the space required by the front strut brace

• Ø109 mm (4.3”) carbon fiber tube — significantly greater internal volume than the factory pipe

• Custom ISO-certified filter — larger filtration area and higher flow rate

📦 Kit Contents:

📈 Expected Results:

⚠️ Compatible with B58D engine only
❌ Not compatible with B58 or B58C

🛠 Compatibility:
✔️ BMW G01 X3 M40i (with B58D engine)
✔️ BMW G02 X4 M40i (with B58D engine)