From the Manufacturer The Traxxas Slash (in both 2wd & 4x4 versions) is arguably one of the best and most authentic replicas of a modern Short Course Truck. Unfortunately, it lacks in a critical detail that many other manufacturers have incorporated into their trucks - mud flaps! That is no longer an issue! RPM now has a mud flap system that integrates with our Rear Bumper for the Traxxas Slash 2wd & 4x4 (RPM 80122, 80123, 80125, 81002, 81003 & 81005). The RPM Mud Flap System uses a pair of molded nylon support arms that bolt to pre-existing holes in the RPM bumper supports of our Slash rear bumpers. These support arms hold a pair of well-designed rubber mud flaps that incorporate the molded RPM Logo on one side and are blank on the other. One final touch is a pair of molded screw supports that help prevent the screws from pulling through the soft rubber of the mud flaps.