Downpipes for Audi RSQ8 / SQ8 / SQ7 4.0 V8 - BRONDEX®. Upgrade your Audi’s sound and performance with BRONDEX® Downpipes for Audi RSQ8, SQ8, and SQ7 4.0 twin-turbocharged V8 engines.Engineered for precision, power, and durability, these downpipes significantly improve exhaust flow, reduce backpressure, and deliver a deeper, sportier exhaust tone. Choose between: Catless Downpipes - Maximum power and sound, ideal for track or performance builds Catted Downpipes (200-Cell High-Flow Sports Catalytic Converters) - Enhanced flow with emissions compliance Perfect for drivers who demand performance, style, and sound, BRONDEX® downpipes are the ideal upgrade for your Audi RSQ8, SQ8, or SQ7. Key Features: Improved Exhaust Sound – Deep, aggressive tone with refined resonance; Increased Power and Turbo Response – Reduced exhaust restriction for maximum efficiency; Premium 304 Stainless Steel Construction – Corrosion-resistant and built to last; Pipe Diameter: 3.5" → 3" (89 mm → 76 mm); Double-Sided TIG Welding on flanges and load-bearing joints for superior strength; Standard Oxygen Sensor Ports; EGT (Exhaust Gas Temperature) Sensor Ports; 100% OEM Fitment - Direct replacement for factory Catalysts; Compatible with models with or without OPF/GPF; Made in Europe with precision engineering; 3-Year Warranty; Always in Stock & Ready for Worldwide Shipping; Compatible Vehicles: Audi SQ7 4.0 Twin-Turbocharged V8 (2019+) Audi SQ8 4.0 Twin-Turbocharged V8 (2020+)