Since 2011, Team JAS Engineered Solutions has introduced a superior coating for the Piston Tube (PDM71-141-9) called "feX3." The feX3 coating derived its name from the chemical element Iron - signifying the product is three times stronger. Below are 3 advantages of the feX3 Piston Tube vs. OEM....The post 3 Advantages: Team JAS FeX3 Piston Tube vs. OEM appeared first on Team JAS.