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+)

Downpipes for Mercedes GT 63 S AMG 4.0 4-door Coupe are equipped with 200-cell High Flow Sports Catalytic Converters. If you are looking to add more power to your Mercedes AMG GT63 / GT63S X290 and make it more interesting and brutal you definitely need: GT 63 / GT 63 S downpipes with 200-cell High Flow Sports Catalytic Converters made by BRONDEX®. ALSO AVAILABLE: Mercedes GT63 S catless downpipes Always in stock and ready for WORLDWIDE SHIPPING! Improved Exhaust Sound; Improved Power; Increasing the live of turbos; Improved turbo and throttle response; Diameter 3,3-3 inch (84mm to 76mm); Complete high-quality EU stainless steel (AISI 304, 316); Oxygen sensor ports by standard scheme; 100% “bolt-on” installation without  removing gearbox; V-Band connections included; Precise and proper fitment using an original Mercedes heat shielding; OEM fit, easy to replace factory parts (for all models, with and without OPF/ GPF), can be installed without lower brackets; 3 years warranty; Made in Europe; Compatible Vehicles: Mercedes GT63 / GT63S 4Matic 4-door Coupe x290 (M177 4.0 twin-turbo engine) 2019-2024;