This one‑piece enclosed dry carbon fiber cold air intake system is purpose‑built for EA837 3.0T belt‑driven supercharged V6 engine. It fully replaces OEM plastic airbox, resonator housing and collapsible corrugated hose. To dampen supercharger whine, the stock intake is equipped with multiple built‑in resonator chambers and narrow neck‑down sections. Under high boost pressure, the factory corrugated hose tends to collapse under negative pressure and restricts airflow. The supercharger itself generates massive operational heat; OEM plastic housing suffers severe heat‑soak during stop‑and‑go traffic.

Fitment: Audi S4 / S5 B8 / B8.5, EA837 3.0T V6 Supercharged, Year 2009‑2013

Supercharger‑specific airflow optimization: EA837 uses belt‑driven supercharger with zero turbo lag. Power output highly depends on intake volume. Our kit removes factory noise‑reduction resonators, enlarges pipe inner diameter and eliminates hose‑collapse risk, delivering approx 40% higher airflow capacity than stock. It guarantees sufficient air supply under high‑RPM & high‑boost condition, enhances low‑mid range torque and highlights the linear power characteristic of supercharger. Works great for stock ECU setup as well as upgraded large‑rotor supercharger.
Heat‑soak mitigation for stable ignition timing: The running supercharger continuously generates large amount of heat. Stock plastic airbox conducts heat quickly; IAT rises sharply during idle & traffic jam, which triggers ECU ignition retard and torque loss. Our enclosed carbon fiber housing isolates heat sources and draws cool ambient air, lowers pre‑supercharger intake temperature, maintains stable ignition timing and minimizes torque drop under hot‑condition. Heat logic differs from turbo‑charged platforms.
Iconic supercharger induction sound: Removes OEM noise‑suppression resonators to release the famous crisp supercharger whine. Enclosed housing avoids harsh disorder noise, keeps acceptable noise level during highway cruise for daily usability. Exposed carbon weave delivers premium visual upgrade for show engine bay.