Have had the PPV dampeners installed since July. They are certainly an improvement over the stock shocks that were bottoming or hitting stops? No more bottoming now but still too bouncy / jouncy. Thinking springs are a bit too stiff? Still waiting for a complete engineered suspension to be offered. Side note, when towing and or loaded heavily the ride is actually pretty good. The other 95% of the time, not so good.
If anyone needs the PPV shock part numbers I will have dig them up? They are not Bilsteins, made in Mexico.