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Q: How do steel rock sliders compare to leaving the factory plastic rockers on?

The factory rockers are plastic aero covers. They look fine but offer no meaningful protection against a rock or a curb, and they can crack. Carbon steel rockers with slider bars turn that same area into structure that shrugs off impacts and carries weight as a step. The tradeoff is added mass and cost, so if you never leave pavement, the stock plastic may be all you need.

Tesla Model S

INSTALLATION guide

For the do it yourselfer or trained mechanic, our in-depth installation guides provide step by step detailed instructions on fitting your Tesla with Unplugged Performance Parts.
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Tesla Model S

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