i got my rubicon from the dealer with them. itp mudlite xtrs with 14 inch ss212s. it was all brand new. when i got home the fender brackets got caught up sometimes when i turned all the way. i drilled through the guides, pulled them down and skrewed it in from the guide of the bracket, and it never rubbed again, and there doesnt seem to be to much of a power loss based on how it is against the rincon, no other mods but i can still do donuts, and drifts, they dont effect the quad at all