Airtec | Aluminium Under Tray | Toyota GR Yaris | G16E-GTS | 2021+The original under tray on Gen 1 cars features no venting at all and is made from a weak fibre material construction which will be prone to failure over time. Gen 2 cars feature a plastic under tray but with a small single vent for the transfer case alone. Construction Airtec's solution to creating a direct replacement under tray began with a full 3D scan of the vehicles underside to ensure a perfect fitment that reuses all original mounting points