RPM 81012 Mud Flaps Bumper Slash Black For the RPM Slash 2wd & 4x4 Rear Bumpers only Tech Notes: The RPM Mud Flap System is designed to work with RPM Rear Bumpers for the Traxxas Slash 2wd & 4x4 only (RPM #80122, #80123, #80125, #81002, #81003 & #81005). They will not work with stock or other aftermarket rear bumpers. Serious strength and rigidity while the chemical make up of our proprietary blend of nylons provides unmatched durability Backed by RPM's world-renowned breakage warranty RPM is a proud American manufacturer designing and manufacturing 100% of our molded products right here in the USA!