For Audi A3 TT Coolant Heater Hose Fitting 3B0 122 291B 3B0122291B Car intake hoses direct cold air to the intake side, minimizing intake turbulence and thus improving airflow and fuel efficiency. A car's intake hose can optimize throttle response, horsepower, fuel economy, and fuel consumption, thereby improving the car's overall performance. This product is stable and comfortable, with high reliability, bringing you a better driving experience and achieving maximum durability. The installation is more flexible and convenient, the structural design is relatively simple, and the structure itself is compact, the overall is light, and the movement is smooth., Manufacturer: PQCORBE