Carbon Fiber Air Intake Kit for Audi S4 B5 (1997-2002) 2.7L

Maximize Induction Cooling for the Audi B5 S4 2.7T V6

Who It’s For: Designed specifically for Audi S4 B5 (1997-2002) owners running the legendary 2.7T V6 biturbo engine.

The Problem: The 2.7T V6 is a powerhouse, but it is notorious for producing extreme under-hood temperatures due to the cramped engine bay and twin-turbo layout. The factory plastic airbox acts like a heat sponge, soaking up thermal energy and warming the intake charge before it ever hits the compressor wheels. This leads to pulled ignition timing and a noticeable loss of torque during spirited driving.

The Solution: We utilize the BMC Carbon Dynamic Airbox (CDA) to create a true thermal barrier for the 2.7T. By replacing the heat-conductive OEM housing with high-grade carbon fiber, we leverage the material’s naturally low thermal conductivity. This kit isolates the intake air from engine bay heat, while the internal flow deflector ensures air reaches the turbos with maximum velocity and minimal turbulence.

Why This is the Ultimate Upgrade

• Dynamic Over-Boosting: The CDA system uses a frontal air intake and flexible aluminum ducting to create a pressurized ram-air effect, forcing a higher volume of oxygen into the system as vehicle speed increases.
• Carbon Fiber Thermal Shielding: Unlike aluminum intakes that turn into "ovens," this carbon fiber housing keeps the internal filtration element cool, ensuring the densest possible air charge for better combustion.
• Washable High-Flow Element: Features a high-performance, reusable filter designed to outlast the vehicle while providing superior filtration compared to paper OEM filters.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 1997 Audi S4 B5 2.7L V6 Twin Turbo
• 1998 Audi S4 B5 2.7L V6 Twin Turbo
• 1999 Audi S4 B5 2.7L V6 Twin Turbo
• 2000 Audi S4 B5 2.7L V6 Twin Turbo
• 2001 Audi S4 B5 2.7L V6 Twin Turbo
• 2002 Audi S4 B5 2.7L V6 Twin Turbo

Interchange Part Numbers:

bmcACCDASP-02, ACCDASP-02

The Performance Promise

Buy with confidence. As specialists in the B5 platform, we know that heat management is the key to longevity for the 2.7T engine. This kit provides the thermal protection your turbos need to perform consistently. Backed by real automotive experts and fast shipping.