I am running them in my Dynamite/Losi shocks that are on my maxx, they are awesome! They greatly improved the handling on my maxx. I am using them with Trinity blue springs, and 50wt oil. On the compression stroke of the shock they act as a two hole piston, and on the rebound they act as a 6 hole piston. I love them on my truck. Best thing is they are under $10, well worth the money in my opinion.