MST 2021+ BMW G80 G82 M3 M4 Competition S58 Cold Air Intake System + Inlet (BW-S5806)

+ 59 horsepower* @ 6300 RPM

+ 67 Torque (Nm)* @ 6300 RPM

To further enhance the performance potential of the S58 engine, we go beyond simply improving airflow efficiency—we redefine the upper limits of the entire intake system from the ground up.

The system features a massive 152 mm high-flow air filter paired with a dual intake pipe configuration. With the combined advantage of enlarged piping and increased filtration surface area, overall airflow capacity is significantly improved, reducing flow restriction and increasing air velocity—ensuring that air supply is no longer a limiting performance factor.

Features

• 6" intake tube for improved airflow
• Dual 6" high-performance filters
• Larger turbo inlet for less restriction
• Maximizes engine airflow
• Laser-cut heat shield blocks engine heat
• Better throttle response and sound
• Compatible with stock or tuned maps
• Reusable high-flow filters, easy to maintain

Fits

• 2021+ BMW G80 G82 M3 M4 Competition S58
• Installation Manual (BW-S5806)

⚠️ Please ensure our product is compatible with your car before placing an order.

If you have any questions, please contact us.

*Due to potential variations in model years (especially transitional years) and different regional specifications by country, we highly recommend contacting us and providing a photo of your engine bay for verification before purchasing to ensure accuracy.

Video Reviews & Installation

Watch video 1

Shipping Information

• Your packages may be subject to the customs fees and import duties of the country to which your order ships. These charges are always the recipient’s responsibility.
• Shipping with UPS, DHL Express, or FedEx.
• For European Union customers, please contact us.
• We have distributors in North America (USA & Canada), Mexico, Europe, Malaysia and Indonesia, we do not provide shipping services to these locations. You may find the contact information on the dealer page.
• If you can’t find the shipping option to your location or for more information, please contact us.

Return & Refund Policy for Duties-Related Returns

(Applicable to customers worldwide)

• All import taxes, duties, and brokerage fees are the responsibility of the recipient.
• If you choose not to pay the required taxes and duties, resulting in the shipment being returned, a refund will only be issued after we physically receive the returned package.
• Any return shipping costs and import duties charged upon re-entry to our warehouse will be deducted from your total payment.
• The remaining balance, after all deductions, will then be refunded.

We strongly advise customers to check with their local customs office about applicable duties before placing an order.

By completing your purchase, you agree to these terms.