The Eventuri BMW E9X M3 (S65) Black Carbon Inlet Plenum – Gloss is a precision-engineered upgrade developed to enhance one of BMW M’s most celebrated engines without altering its factory performance characteristics. Designed specifically for the high-revving 4.0L S65 V8, this carbon plenum replaces the OEM plastic unit with a motorsport-grade alternative that delivers a dramatic improvement in induction sound and engine bay presence.

Constructed entirely from prepreg carbon fiber, including the internal trumpets, the Eventuri plenum preserves the carefully engineered internal volume and runner geometry established by BMW. Rather than pursuing marginal peak horsepower gains, Eventuri focused on maintaining the engine’s smooth torque delivery and throttle response while unlocking a more pronounced and exotic intake tone.

Extensive development allowed Eventuri to refine the carbon layup thickness to achieve an ideal resonance profile. As engine speed climbs, the plenum amplifies the induction character of the naturally aspirated V8, producing a sharper, more aggressive sound reminiscent of the iconic M3 CSL. The result is a heightened sensory experience that transforms every drive while respecting the mechanical balance of the S65 platform.

Compatible with the factory intake system as well as upgraded carbon intake components, this plenum integrates seamlessly into the engine bay with OEM-level fitment. The high-gloss carbon weave provides a substantial visual upgrade, replacing aging plastic with a finish worthy of BMW’s last naturally aspirated V8 M3.

For customers seeking a factory-inspired finishing touch, we offer the option to add a genuine BMW OE S65 ///M V8 emblem. When selected, the emblem is professionally pre-installed prior to shipping to ensure precise alignment and a clean OEM-quality presentation.

For additional technical information and performance data, please visit the manufacturer’s product page: Eventuri BMW E9X M3 Carbon Plenum Technical Details.

Product Details

• Fits BMW E90, E92, and E93 M3 equipped with the S65 V8
• Full prepreg carbon fiber construction
• Gloss carbon fiber finish
• Maintains OEM plenum volume and trumpet geometry
• Engineered to enhance induction sound without compromising drivability
• Carbon fiber trumpets manufactured to factory specifications
• CNC-machined aluminum flanges for precise fitment
• Integrated CNC-machined temperature sensor boss
• Integrated CNC-machined breather boss
• Compatible with factory and upgraded intake systems
• Optional genuine BMW OE S65 ///M V8 emblem professionally pre-installed when selected

Notes

• Carbon Fiber Plenum Base and Lid are bonded as a single assembly.
• Some images may show optional carbon intake components available separately.
• This item is not eligible for return once opened.
• Professional installation is recommended.
• Warranty coverage and damage-in-transit support are fully provided.
• View emissions compliance notice