Diamond plate weighs much more, no?
Skid plates are to keep stuffs from getting jammed up in there when you nail the ground. Your gonna dent some stuff for sure in a rallyX event, just minimize ripping shit off. Well, other than the skid plate.
If you want to go full on rally. usually same deal, maybe thicker alumn. Oh, and forget your body as you will be drilling holes all over for support and odd ends.
Funny, but yes it works.
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