Upgrade your BMW with the MST Performance Intake Kit, engineered specifically for B58-powered BMW X3 M40i and X4 M40i (G01 / G02).

One of the most popular upgrades for the B58 platform, this high-performance intake system improves airflow, sharpens throttle response, and delivers a deeper, more aggressive turbo induction sound—enhancing both performance and driving experience.

Combining proven performance gains with competitive pricing, this is one of the best value intake upgrades available for the B58-powered X3/X4 M40i.

Why Choose MST Performance?

• Increased airflow – eliminates restrictions of the factory airbox
• Faster throttle response – improved acceleration and engine responsiveness
• Real performance gains – up to +12–14 HP* depending on setup
• Aggressive intake and turbo sound – enhances driving engagement
• Cold air feed design – stable performance in all driving conditions
• Excellent value for money – strong performance without premium-brand pricing

*Power gains may vary depending on vehicle configuration and modifications.

Key Features

• Powder-coated heat shield – reduces heat soak and protects intake temperatures
• Powder-coated intake pipe – durable and optimized for smooth airflow
• High-performance dry pleated air filter – efficient filtration with easy maintenance
• Red performance filter element – designed for maximum airflow and efficiency
• Silicone coupler – ensures airtight fitment and reliability under boost
• Complete installation kit – includes all hardware and step-by-step instructions

Performance & Driving Experience

The MST intake system is designed to meet the airflow demands of the B58 turbocharged engine, especially under higher boost and tuned conditions.

By replacing the restrictive OEM intake, this upgrade delivers:

• Quicker turbo spool and improved boost response
• Stronger mid-range torque and improved top-end performance
• More aggressive turbo induction sound under acceleration

Perfect for both stock vehicles and tuned builds, including Stage 1 and Stage 2 setups.

What’s Included

• Powder-coated heat shield
• Powder-coated intake pipe
• Dry pleated performance air filter (red)
• Silicone coupler
• Full installation hardware kit with instructions

Compatibility

BMW X Series

• X3 G01 M40i
• X4 G02 M40i