you will probably want to replace the rear bumper for a wheelie bar, my bumper is worn all the way out pretty much from scraping the road, not to mention it dosent help the truck from flipping over, mine flips on its back no matter what, i have the vxl with maxamps 11.1 8000 lipo. i cant give it full throttle at like 40-50 because it flops on its back and slides all the way down my street. I guess this is a good thing.