2017-2024 Audi RS4 B9 B9.5 & S4 B9 B9.5 BKSS Style Rear Decklid Spoiler Drivetrain>Wheel Bearings Cold start (cat heating on

Cold start (cat heating on startup) removal for quieter cold start

and more consistent power delivery across the RPM range

This works well for stock trucks but for heavy duty use and higher horsepower applications this may be insufficient

with Black High Temp Silicone Jacketing and Black Fire Sleeve

75-inches towards the rear

2017-2024 Audi RS4 B9 B9.5 & S4 B9 B9.5 BKSS Style Rear Decklid Spoiler Drivetrain>Wheel Bearings Cold start (cat heating onDarwinpro 2017 2024 Audi RS4 B9 B9. 5 & S4 B9 B9. 5 BKSS Style Rear Decklid Spoiler Shop premium parts to enhance your vehicle's performance, style, and customization with high quality upgrades Condition: Brand New Material: CFRP & FGCF Fits 2017 2024 Audi RS4 B9 B9. 5 & S4 B9 B9. 5 Package Contents: One rear spoiler Part No: CF8374BKSS TS Installation Instructions : Double sided tape(recommended with adhesive) Have Questions about Material options?