SE3P RX-8 Spec-KS Rear Aero Bumper Picture Item Number RX8-RB-KS Item Description Rx8 Spec-KS Rear Aero Bumper Price Hybrid FRP $450 Picture Item Number RX8-RB-KS Item Description Rx8 Spec-KS Rear Aero Bumper w/ Carbon Accent Price Material: Carbon $750 Kevlar $750 Weave Pattern For Carbon & Kevlar: Plain Twill