Introducing the Eventuri Carbon Fibre Plenum for the BMW E9X M3 — a masterpiece crafted entirely from 100% premium prepreg carbon fibre, including the internal velocity trumpets. Designed as a direct replacement for the factory plastic unit, this plenum transforms the character of the naturally aspirated S65 engine by unlocking its full induction sound potential.

While BMW carefully tuned the original trumpet lengths and internal volume for optimal performance, Eventuri’s design faithfully preserves these dimensions to maintain the car’s power delivery and drivability. The focus here isn’t on peak power gains — it’s on the uncompromising emotional impact. The result is an exhilarating induction symphony that takes the M3’s V8 soundtrack to another level.

Developed through multiple iterations and sound analysis, the final construction and wall thickness were refined to produce a deep, resonant tone under load and an addictive CSL-like wail at higher RPM. The combination of precision-engineered carbon fibre and the S65’s high-revving nature delivers an authentic motorsport experience that few modern engines can match.

The Eventuri Carbon Plenum is fully compatible with both the OEM airbox and aftermarket intake systems, making it a seamless upgrade for enthusiasts who demand both craftsmanship and emotion.