Has anyone modified an existing(D1) rear bumper to be a little more off road worthy?(by that I mean deleted the end caps other than knocking them off on a rock and replacing/welding? with something slider/tube like protection ? Been looking at replacing my existing OE unit with something that gives a little more ground clearance and or protection to rear panels but most require modify rear frame ?before you can mount(or am I doing work to make work?) Did a search but didn't come up with any thing close.