ARMASPEED Audi A4 | B9 / B9.5 2.0T | Carbon Fiber Cold Air IntakeARMASPEED Audi A4 B9 B9. 5 2. 0T Carbon Fiber Cold Air Intake Unlock the full potential of your Audi A4s turbocharged engine with the ARMASPEED Carbon Fiber Cold Air Intake. Engineered with a vacuumed carbon fiber airbox, this intake system effectively shields incoming air from engine heat, resulting in cooler air intake and improved combustion efficiency. With a direct bolt on design, this intake requires no ECU remapping, offering both performance