Air Induction Kit - MST - GR YarisMST Air Induction Kit for GR Yaris Fantastic value, quality and sound! This induction kit delivers increased air flow and induction noise over the standard restrictive air box. Whether this kit is being installed to a standard vehicle or to an already tuned vehicle, you can be sure of the positive performance gains this will deliver. The heat shield provides better heat resistance, along with our enlarged intake pipes & air filter. Dyno results show