The replacement of the intake pipe improved the car's performance. 1J0133699A Silicone Hose Fuel Line Tube For A3 8L1 High Performance ratings with reliability in all conditions. The new air intake pipes clean and filtered fresh air from outside the car to inside the car engine where it is mixed with fuel and burned. Replacing a damaged or leaking intake hose is crucial to ensuring the engine receives sufficient air, thereby guaranteeing proper ignition., Manufacturer: Jjwdl