Infinity Design BMW M3 (E9X) S65 V8 Carbon Intake
For this application, the entire airbox has been completely redesigned. The factory intake elbow narrows considerably from the plenum opening to the airbox. Simply increasing the size or smoothing this elbow, a common approach for other intakes, has minimal effect on power. This is because any airflow improvement is still restricted by the small area within the OEM airbox.
The design strategy was to create an inlet tube that maintains a consistent cross-sectional area from the plenum opening and then slowly widens it. To achieve this, the team had to completely redesign the airbox to allow such a large tube to pass through.
The result is an inlet tube that is significantly larger in both volume and cross-sectional area. It gradually increases in size as it leads to a large surface area air filter. The plenum can now take in air to its maximum capacity, as the cross-sectional area remains consistent and then expands.
Specifications
- Construction: Pre-preg & autoclave carbon fiber
- Design: Sealed for optimal air temperature efficiency
- Finish: Available in a Gloss or Matte clear-coated finish
- Features: Improved throttle response and induction noise
- Fitment: Plug-and-play
Components
- Plenum to Airbox Venturi Intake Tube
- Lower Airbox
- Lid
- 1x black metal clamp
- 1x High-Flow Air Filter
- Silicone Couplers and Clamps
- Screws
Installation
- Tuning: No tuning is required.
- Estimated Time: Plan for approximately 30 minutes for installation.










