Milltek Particulate Filter-back Non Resonated - Toyota Yaris GR & GR Circuit Pack 1.6T (OPF/GPF Models Only) Remap Warranty During development we noticed an

During development we noticed an additional opening into the wheel arch area and took advantage of this by adding a secondary feed to our airbox

Lower base plate with second half of velocity stacks and directional air channels (equal distribution of air)

The side skirts are constructed using a vacuum infusion process

Our solution was to completely redesign the entire airbox which maximised volume

By recalibrating ignition timing

Milltek Particulate Filter-back Non Resonated - Toyota Yaris GR & GR Circuit Pack 1.6T (OPF/GPF Models Only) Remap Warranty During development we noticed an3" 76mm Non Resonated (Louder) OPF GPF Back System Our range of Cat Back systems are perfectly suited to cater for anyone looking to improve their sound and aesthetics, designed as a direct replacement for the original system, available in multiple configurations enabling the owner to choose the increase in volume of their exhaust and or add a more suitably aggressive tone. All our products are made from 304L Aircraft Grade stainless steel. This