By ensuring a sealed system we have improved on the IAT's of the OEM airbox whilst at the same time increasing the internal volume to reduce the pressure drop and therefore reduce pumping losses of the turbo. In doing so the turbo is able to operate more efficiently and therefore reaches peak boost sooner to produce a net performance gain. The filter itself has an outer diameter of 210mm or 8.3?
With a filtration surface area of over 130,000mm^2. The patented Venturi housing has been designed to provide the maximum internal volume possible for the GR Yaris and provides laminar flow to the turbo tube.