Quote Originally Posted by stefanvv View Post
And what's illegal about that? I see the same restrictor size of 34mm.....
It baffles me that you don't know the infamous Toyota cheat... They still spoke about it when I started watching rallying in the late 90s.

They built device around the mandatory restrictor that would hold the restrictor towards the turbine housing with springs. The inlet air hose was then put over the restrictor and the restrictor pulled out while hose clamps secured the restrictor in out position, thus letting more air in behind the restrictor.

If you wanted to inspect the thing, you needed to remove the hose clamps and voila, the restrictor snaps back in place via the springs and all looks well.