Same Guides that are used on RTR Drift Team, Cleetus's Neighbor, and McFlurry (We all know how tough these guys are on stuff) and many others Custom blend of Wear Resistant Acetal Polymer CNC Machined No Wear Liners Needed Were only available for in house builds, now we are offering them to everyone! Fits GEN 1/2/3 &  GT350/Predator Complete Kit with Stationary Guides, Tensioner Guides, and Secondary Guides