RXP 215hp, Gen II cooler, Riva ECU + Valve Train, XXX charger, 50lbs inject, Pressure regulator at 60lbs, Riva intake Grate, and others. OEM Nozzle 83mm. OEM Pump cone.

What the correct prop to use in this Mod SD? 15/22r works good?

Riva don't have more the impeller skat trak to stage III - 3 blade impeller. Out of stock...