Do these vents require hood pin support?

Hood pins are independent of vent fitment and depend on your hood's total weight and hinge condition. If you're currently running pins, keep them. If you're not, assess whether your hinges handle the load before adding any panel.

Will these vents seal properly against rain?

The single-piece FRP design has no seams, which minimizes water intrusion points. Proper surface sealing during prep and paint application will help repel moisture. If your hood has existing drainage or rain gutter features, verify they remain clear after vent installation.

How much lighter is FRP compared to factory steel?

FRP delivers significant weight savings over OEM steel hoods. The exact reduction depends on your factory panel; measure and compare weights if exact specs matter for your build.