Infinity Design BMW S65 Carbon Plenum – Enhanced Induction Sound & High-RPM Performance Transform your BMW S65 engine with a fully redesigned carbon plenum, engineered to deliver improved airflow characteristics, enhanced induction sound, and high-RPM performance gains. Inspired by our flagship S85 plenum, this is more than just a replacement—it’s a complete upgrade in both design and driving experience. DESIGN & FEATURES 100% Carbon Fibre Construction (1.2mm thickness): Lightweight, durable, and designed to unleash the full emotional sound of the S65 engine. Increased Internal Volume: Expanded frontal section and top cover allow improved airflow and breathing at higher RPMs. Modular System: Compatible with interchangeable lids and velocity stacks, offering flexibility for future upgrades. Larger Carbon Velocity Stacks: Supplied stacks feature larger openings than OEM, improving airflow efficiency and intake dynamics. Precision CNC Components: Includes throttle body bosses for a secure and accurate fit. PERFORMANCE TESTINGDynojet testing under controlled conditions shows real, repeatable gains, especially at higher RPMs: +5–8 hp from 5600–6400 rpm +8–10 hp from 6800–8200 rpm Improved airflow efficiency while maintaining smooth and consistent power delivery WHAT’S IN THE BOX✅ 1 x Carbon Plenum Assembly✔ Lid✔ Main Body✔ 10 x Larger Carbon Velocity Stacks✔ 10 x CNC Throttle Body Bosses✔ Nuts & Bolts Enhance your BMW S65 with a carbon plenum that delivers race-inspired sound, improved high-RPM performance, and modular upgrade flexibility—perfect for enthusiasts who want both aesthetic impact and driving excitement.
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