Upgrade performance while retaining street-friendly operation with the STRATEC High-Flow Catted Downpipes for the Audi SQ8 and RSQ8 4.0T twin-turbo V8. Designed to replace restrictive factory downpipes, this system improves exhaust flow, turbo efficiency, and throttle response while maintaining catalytic converters for smoother drivability.
Featuring high-flow performance catalysts and a free-flow stainless steel design, these downpipes reduce backpressure and unlock noticeable gains in horsepower and torque. Integrated heat shields help protect surrounding engine bay components from elevated exhaust temperatures during spirited driving.
Key Features
Fits Audi SQ8 & RSQ8 4.0T (2022–2023)
High-flow catted downpipe design
Performance catalytic converters for improved airflow
304 stainless steel construction for durability and corrosion resistance
Integrated heat shields for thermal protection
Reduces turbo lag and exhaust backpressure
Improves throttle response, horsepower, and torque
Deeper, more aggressive exhaust tone while remaining refined
Precision-engineered for OEM-style direct bolt-on fitment
