Unlock the true performance of your Audi RS4 or RS5 B9 (EA839 2.9 TFSI) with the CRT Performance 200 CPSI Sport Catted Downpipe. Designed specifically for EU models equipped with OPF/GPF filters, this downpipe dramatically improves exhaust flow and reduces backpressure compared to restrictive OEM catalysts — resulting in quicker turbo spool, enhanced throttle response, and a refined, sportier exhaust tone.

Key Features

• Reduced Backpressure – Faster turbo spool and sharper throttle response.

• Weight Reduction – Noticeably lighter than factory catalytic systems.

• Optimized Exhaust Flow – Smooth mandrel bends eliminate turbulence for higher efficiency.

• Refined Sound Profile – Deep, controlled exhaust tone ideal for performance road use.

• Lower Emissions – 200 CPSI sport catalyst ensures the perfect balance between performance and emission reduction.

Materials & Construction

• Handcrafted from Premium 304 Stainless Steel – Exceptional heat and corrosion resistance.

• CNC-Machined Flanges – Perfect OEM fit and reliable sealing.

• 200-Cell High-Flow Catalyst (200 CPSI) – Improves gas velocity while maintaining partial filtration.

• Expert TIG Welding – Maximum durability and motorsport-grade finish.

• Wrapped in High-Quality Thermal Shield – Enhances heat management and protects nearby components.

Testing & Reliability

Each CRT Performance downpipe is road- and track-tested to ensure optimal flow dynamics, reliability, and long-term durability even under extreme load conditions.

Important Notice

• Designed exclusively for EU OPF/GPF-equipped vehicles.

• Use of a sport catalyst may still trigger a Check Engine Light (CEL) depending on ECU calibration.

• CRT does not guarantee emissions compliance – intended for off-road or motorsport use only.

Compatibility

• Audi RS4 B9 (2019–2024, EU)

• Audi RS5 F5 (2019–2024, EU)

For OPF/GPF-equipped models only.