2014-2019 Porsche 911 991 GT3/GT3RS Carbon Fiber Roll Cage
Built for drivers who push the 991-generation GT3 and GT3 RS to their limits, this carbon fiber roll cage delivers a critical safety upgrade while minimizing the weight penalty typically associated with traditional steel cage installations. Designed specifically for the 2014–2019 991.1 and 991.2 GT3/GT3 RS chassis, this cage integrates with the car's factory hard points and interior geometry for a fitment that respects the car's original engineering. Overview & Important Note on Materials Before detailing specs, it's worth being transparent about something important: full carbon fiber roll cages are rare in the market, and for good reason. Most reputable roll cage manufacturers (Autopower, Custom Cages, StudRack, RSS, Agency Power body components aside) build primary roll cages from chromoly or DOM steel tubing, not carbon fiber, because: Carbon fiber's failure mode under impact is sudden and catastrophic (shattering/delamination) rather than the progressive, energy-absorbing bend of steel or chromoly tubing Most motorsport sanctioning bodies (FIA, SCCA, NASA, PCA) either prohibit carbon fiber as a primary cage material or require it be paired with a certified steel structure Weight savings on a cage are usually achieved through chromoly (lighter and stronger than mild steel) rather than by moving to composite tubing If what you're looking at is marketed as a "carbon fiber roll cage," it's worth confirming with the seller whether that means: A steel/chromoly cage with a carbon fiber aesthetic wrap or sleeve on visible tubing (common for interior show-quality builds) A carbon fiber halo/harness bar (partial, non-structural, e.g., a rear brace) rather than a full cage An actual composite tube cage (rare, typically custom-fabricated, and likely not certified for competition use) I'd rather flag this now than write a polished spec sheet implying a full structural carbon cage is a standard, safety-certified product — that's the kind of detail that actually matters if you or someone else is relying on it in a crash.