Performance Intake Funnel for BMW R12 G/S

Maximize your boxer engine's efficiency: flow-optimized intake trumpets for a noticeable performance boost.

The boxer engine of the BMW R12 G/S is a masterpiece of engineering, but in production form is often limited by compromises in airflow. Our performance intake trumpets, developed in cooperation with the specialists at RS2E, address exactly this. They replace the original intake boots and optimize the way your engine "breathes".

Engineering meets motorsport experience

Instead of the standard solution, these trumpets are screwed directly into the airbox and form the ideal transition to the flexible hose before the throttle valves.

Due to the characteristic boxer design of the R12 G/S, we have designed the left and right sides in different lengths. This asymmetrical optimization is crucial to ensure perfect filling of both cylinders. The result, which we have validated on the test bench: Significantly improved airflow, reflected in excellent throttle response and more powerful torque delivery across the entire rev range.

Undercover Performance

We know that design plays a major role with the R12 G/S. That is why our intake trumpets integrate almost invisibly into the vehicle layout. After installation, they sit discreetly under the airbox cover – so the full performance is noticeable, but remains your secret visually.

The System Upgrade

The performance intake trumpets can be installed on their own and already deliver a noticeable improvement. However, they reach their full potential as part of our comprehensive concept. In combination with our modified intake cover, a sport exhaust system and the matching LEVARC / RS2E Engine Mapping, you achieve the maximum performance this setup can offer.

Technical Highlights:

• Optimized airflow: Better cylinder filling for more torque.
• Test bench validated: Developed and tested in close cooperation with RS2E.
• Precise fit: Different lengths for left/right, screw directly into the airbox.
• Discreet installation: Almost invisible under the original cover.