I used U-Pol Raptor liner on my SSO bumper and my RCi sliders and both turned out great and have held up well. I just touch up with black spray paint occasionally to bring back the fresh look. I recommend you spend a good amount of time on prep and use their self etching primer. Other than the prep work, the rest is easy peasy.
Could you post up some pictures please if you have any? Thanks, I cannot find any when i search.