Res-X Front Resonator Delete – B9/B9.5 Audi S4/S5 3.0T

Transform the sound of your Audi S4 or S5 with the Res-X Front Resonator Delete. Designed specifically for the B9 and B9.5 3.0T platform, this direct bolt-on upgrade replaces the factory front resonators to deliver a deeper, sportier exhaust note without the expense of a complete cat-back exhaust system.

Manufactured from premium 304 stainless steel, the Res-X system offers excellent durability, corrosion resistance, and a precision fit. Installation requires no cutting or welding, making it a completely reversible modification that can be fitted using the supplied exhaust clamps.

The result is a more aggressive exhaust tone during acceleration while maintaining comfortable cabin refinement for everyday driving. The lightweight design also reduces exhaust system weight compared to the factory resonators, contributing to improved performance and a cleaner exhaust flow.

Features

• Direct bolt-on installation – no cutting or welding required
• Premium 304 stainless steel construction
• Deeper and more aggressive exhaust sound
• Minimal cabin drone during normal driving
• Lightweight design compared to OEM resonators
• Fully reversible installation
• Includes high-quality exhaust clamps
• Compatible with B9/B9.5 Audi S4 & S5 3.0T models

Vehicle Fitment

• Audi S4 (B9/B9.5) 3.0T
• Audi S5 Coupe (B9/B9.5) 3.0T
• Audi S5 Sportback (B9/B9.5) 3.0T

Note: This product is not compatible with OPF/GPF-equipped vehicles (late-2018+ models in certain markets). Please verify your vehicle specification before ordering.