Carbon Fiber vs Fiberglass RK Sport Parts: What to Consider

Updated

RK Sport sells both carbon fiber and fiberglass hoods, and the price gap is real: on the current site, a 2021–2025 Ford F150 Ram Air Hood V1 in carbon fiber is listed at $2,149.99, discounted to $2,099.99, while a 2019–2026 RAM 1500 V2 Ram Air Hood in fiberglass is $1,349.99, discounted to $1,299.99. That's roughly an $800 difference between two flagship hoods. Carbon fiber is the pick if you want the lightest part and a finish you may not paint; fiberglass is the pick if you want the same aggressive styling for less money and are fine painting it to match your truck.

The core trade-offs

Factor Carbon fiber Fiberglass
Weight Lighter — the main functional reason to pay more Heavier, but still lighter than most stock steel hoods
Appearance Visible weave; can be left unpainted as a show piece Needs paint; gelcoat or primer finish isn't meant to be shown
Strength/stiffness High stiffness for its weight Adequate for street use; more prone to stress cracks if flexed
Price (site examples) $2,099.99–$2,149.99 (F150 Ram Air V1, Cowl) $1,299.99–$1,349.99 (RAM 1500 V2 Ram Air); $649.99 (F150 splitter)
Best for Weight savings, show builds, exposed-weave looks Budget builds, color-matched daily drivers

When carbon fiber is worth it

  • You're chasing weight reduction and the hood is one of several parts you're swapping.
  • You want the weave visible — a carbon hood left unpainted is a deliberate styling choice, and painting over it wastes most of what you paid for.
  • The vehicle is a show or weekend build where the hood is a focal point.

Note that the F150 carbon fiber listings show the same part repeated at $2,149.99 → $2,099.99, so the discount is modest relative to the base price. Don't assume a carbon part will be dramatically cheaper during a sale.

When fiberglass makes more sense

  • You plan to paint the hood to match the body anyway — once it's painted, the material difference is mostly weight, not looks.
  • You're building a daily driver or work truck where a $650–$1,350 part beats a $2,100 one.
  • You want a matching set. The F150 fiberglass splitter at $649.99 fits all 2021–2025 F150 models, so you can pair a fiberglass hood and splitter for less than the cost of one carbon hood.

Questions to answer before you buy

  1. Will you paint it? If yes, fiberglass usually wins on value. If no, carbon fiber is the only one of the two that looks finished as-is.
  2. Does the part fit your exact year and model? RK Sport lists parts by year range (for example, 2021–2025 F150, 2019–2026 RAM 1500). The splitter listing explicitly states it fits all 2021–2025 F150 models — check for that kind of explicit fit note rather than assuming.
  3. Is weight actually your goal? If you're not tracking the truck or building for show, the weight difference rarely justifies the price gap on its own.
  4. What's your total budget? A carbon hood plus paint (if you paint it) plus install can exceed a fiberglass hood, splitter, and paint combined.

Practical notes

  • RK Sport describes itself as "America's Hood Company," founded on performance and design and supplying styling for over 30 years, with parts for Chevrolet, Ford, GMC, RAM, Toyota, and Pontiac. The catalog covers hoods, spoilers, body kits, ground effects, splitters, diffusers, wings, engine dressing, and carbon fiber accents.
  • The site lists shipping information, returns and exchanges, and a FAQ — read the returns policy before ordering a large painted or unpainted body panel, since shipping damage and fit issues are the usual pain points on parts this size.
  • Prices and availability shown here are from the current site listings and can change; confirm the price and fitment for your specific vehicle before ordering.

Bottom line: choose carbon fiber when low weight and an exposed-weave finish are the point of the build, and choose fiberglass when you want the same styling, plan to paint, and would rather spend the difference elsewhere.