Performance Upgrades for Audi S4 and S5 B9
The Audi S4 / S5 B9 combines a responsive turbocharged engine, quattro traction and everyday usability in a refined performance package. Carefully chosen upgrades can further enhance throttle response, sound character and driving dynamics without compromising comfort.
Eventuri carbon intake systems improve airflow efficiency and reduce heat soak, helping the engine breathe more freely and improving throttle response. The carbon construction also complements the performance-focused appearance of the engine bay.
Exhaust systems from iPE Exhaust deliver a deeper and more engaging sound profile, while maintaining refinement during daily driving. Precision engineering ensures proper integration with factory components and electronics.
To complete the setup, BC Forged wheels reduce unsprung mass and improve steering feedback, while giving the S4 or S5 a more aggressive and purposeful stance. Forged construction provides strength and durability suitable for daily use.
Why Upgrade Your Audi S4 or S5 B9?
- Improved throttle response: High-flow intake systems optimize airflow.
- Enhanced sound: Performance exhaust systems add character without excessive noise.
- Sharper handling: Lightweight forged wheels improve steering feel.
- Refined appearance: Subtle upgrades that maintain OEM quality and comfort.
All Audi S4 and S5 B9 upgrades offered by BaanVelgen are selected for precise fitment, durability and real-world performance. Whether you are building a refined daily driver or a more dynamic weekend car, these upgrades help unlock additional potential from the B9 platform.
Frequently Asked Questions – Audi S4 / S5 B9
Are these upgrades compatible with both S4 and S5 B9 models?
Yes. Many performance parts, including intake systems and exhaust upgrades, are compatible with both Audi S4 and S5 B9 models. Always check individual product pages for exact fitment.
Do intake upgrades require ECU tuning?
In most cases no additional tuning is required. High-quality intake systems are designed to work with factory engine management systems.
Will an aftermarket exhaust affect daily drivability?
No. Premium exhaust systems are engineered to maintain comfort and refinement while delivering a more engaging sound under acceleration.
Are forged wheels suitable for daily driving?
Yes. Forged wheels are lightweight yet strong, making them ideal for both daily use and spirited driving.



