S65 Modular Carbon Plenum

Infinity Design S65 Modular Carbon Plenum for BMW E9X M3 is built for owners who want more induction sound, sharper response, and a premium carbon engine bay upgrade for the S65 V8.

This modular carbon plenum replaces the factory plastic intake plenum with a high-quality carbon fibre design. It is made to improve airflow, enhance the sound of the individual throttle body S65 engine, and give the engine bay a much more special look.

The modular design allows the system to work with different intake setups and gives owners a clean upgrade path. It is a strong choice for naturally aspirated E9X M3 builds where sound, throttle response, and detail matter.

Under load, the carbon plenum gives the S65 a sharper and more aggressive intake tone while keeping the character of the factory V8. It pairs well with ECU tuning, exhaust upgrades, and other street or track-focused modifications.

Highlights:

• Modular carbon fibre plenum

• Designed for the BMW S65 V8 engine

• Enhances induction sound

• Improves engine bay appearance

• Supports better airflow

• Sharper throttle response

• Strong upgrade for naturally aspirated builds

• Works well with supporting intake and tuning upgrades

• Premium carbon construction

• Designed for street and track-focused E9X M3 builds

Fitment:
BMW E90 M3
BMW E92 M3
BMW E93 M3
S65 V8 engine

Notes:
Professional installation is recommended. ECU tuning may be required or recommended depending on the final intake setup and vehicle configuration.