Wagner Tuning Audi S4 B9 300CPSI EU6 Downpipe Kit

Wagner Tuning Audi S4 B9 300CPSI EU6 Downpipe Kit – 500001031

Upgrade the exhaust performance of your Audi S4 B9 or Audi S5 F5 3.0 TFSI with the Wagner Tuning 300CPSI EU6 Downpipe Kit. Engineered for improved exhaust flow and reduced back pressure, this high-performance downpipe system supports increased power delivery and enhanced turbocharger efficiency.

Vehicle Compatibility

Compatible with:

• Audi S4 B9 3.0 TFSI
• Audi S5 F5 3.0 TFSI

Key Features

• High-Performance Downpipe Kit
• 300CPSI Racing Metal Catalytic Converter
• EU6 Coated Catalyst Design
• Manufactured from Stainless Steel 1.4301 (SS304)
• Dual Ø3 Inch Downpipe Design
• Includes Adapter for OEM Exhaust System
• CAD-Designed and Flow Optimized Construction
• Direct OEM Replacement Fitment
• Reduced Turbocharger Thermal Load
• Improved Exhaust Gas Flow
• Increased Torque and Engine Response

Performance Benefits

The Wagner Tuning Downpipe Kit is designed to improve exhaust gas flow efficiency by reducing back pressure compared to the factory exhaust system. This helps lower thermal stress on the turbocharger while supporting improved power delivery and torque output.

The 300CPSI racing catalyst provides enhanced exhaust flow characteristics while maintaining a high-quality performance-focused design.

Optional Upgrade

Optional Ø76mm (3-inch) center silencer replacement pipes are available for a deeper and sportier exhaust sound.

Construction Quality

Manufactured using premium-grade SS304 stainless steel, the downpipe system is built for durability, corrosion resistance, and reliable high-performance operation.

Installation

• Direct OEM Replacement
• 100% Vehicle-Specific Fitment
• Easy Installation with Factory-Style Compatibility

Important Notice

• Sports catalytic converters and decat systems are intended for off-road or motorsport use only.
• Non-EC type-approved exhaust components may not pass road legality or emissions testing requirements.
• Check local regulations before installation or road use.

The Wagner Tuning Audi S4 B9 300CPSI EU6 Downpipe Kit is an ideal upgrade for drivers looking to improve exhaust flow, turbo efficiency, and overall engine performance on the Audi 3.0 TFSI platform.