Unlock the true performance of your BMW with the Ramair B58 PRORAM Induction Kit, engineered specifically for B58-powered models including M140i, M240i, 340i, and 440i.

Designed to replace the restrictive factory intake system, this high-performance induction kit delivers increased airflow, sharper throttle response, and a deeper, more aggressive turbo sound. Whether you're upgrading a daily driver or building a tuned setup, this intake system transforms how your engine breathes and performs.

Key Features

• 90 mm intake diameter – optimized for maximum airflow and turbo efficiency

• OEM MAF sensor compatibility – seamless integration with factory electronics

• Improved performance and faster throttle response

• Enhanced intake and turbo sound for a more aggressive driving experience

• High-flow PRORAM pleated air filter for maximum airflow and filtration

• Complete installation kit with step-by-step instructions

What’s Included

• Black powder-coated heat shield – reduces heat soak and protects intake temperatures

• Carbon fiber lid – lightweight, premium motorsport finish

• PRORAM pleated air filter – optimized airflow with effective filtration

• Powder-coated intake pipe – engineered for smooth, unrestricted airflow

• Black silicone reducer and coupler – ensures perfect fitment and sealing

• Full installation hardware kit with detailed instructions

Performance & Driving Experience

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

By reducing intake restriction and improving airflow stability, this upgrade delivers:

• Faster turbo spool and improved boost response

• Stronger mid-range torque and top-end performance

• More aggressive turbo induction sound under acceleration

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

Compatibility

BMW 1 Series

• F20 M140i Hatchback

• F21 M140i

BMW 2 Series

• F22 M240i Coupe

• F23 M240i Convertible

BMW 3 Series

• F30 340i Sedan

• F31 340i Touring

• F34 340i GT

BMW 4 Series

• F32 440i Coupe

• F33 440i Convertible

• F36 440i Gran Coupe