depends on what kind of cf it is i would think. the dragonplate rods are extruded right? very dense but might shear or fracture? directional (normal cf) wwould be my first choice(like i really know what the hell im talking about!!) if they would hold up for a season or so it would be worth it. what would you use to replace the 100 or so grams in your car? bigger motor? batteries? or run it "lightwieght"