All the proper cars using the Air Inj. thats for sure. So is there phase and antiphase at the wastegate!? But do you still measure the Post Restrictor Presure (PRP) on your engine? Our WRC is running already 1.8 bar at the road and 2,1 at the dyno. But with 34mm restrictor there is no top end boost ==> no top end power. Wouldt be nice to see a datarec of an unrestricted IHI-powerd Engine to see the bounderys of the WRC turbo.

kind regards
Martin