The back view of GR Yaris, which tends to be fascinated by wide fenders, but the volume of the rear bumper is also quite a thing. However, for its volume, it is a simple design with a small reflector attached to the rear of the left and right fenders of the hamper.
So why not set up a duct in the space above the reflector and make it a little more spartan in terms of design?

Since the duct is installed, we proceeded with the development as a tuning part with a function/role, not a part with a high fashion element such as attaching a duct to the bumper.

By extending the duct baffle plate to the fender liner and providing an opening in the fender liner, the running wind caught in the rear wheelhouse passes through the duct and is discharged from the rear bumper to the rear of the vehicle, which has a rectifying effect. did.
The running wind caught in the wheelhouse has become air resistant, and in order to generate lift, aerodynamic development such as installing a rectifying plate has been done in the past.
Rectifying the running wind to the rear of the vehicle is effective in stabilizing the vehicle when driving at high speeds such as when driving on highways or circuits.

Also, as an option, fins designed to divide the inside of the duct into upper and lower parts are set.
This fin is not just a partition plate for improving the design, but a 3D shape to suppress the generation of turbulence and aim for a solid rectification effect, so it is a solid functional part with improved design. Play a role.

The rear view of the GR Yaris equipped with this product has a natural design that fits well in the rear bumper because the size of the duct is not overstated by the duct.

Both ducts and fins are available in two types: carbon and unpainted FRP.