Universal Time Attack Bonnet VentsUniversal Time Attack Bonnet Vents. Helps evacuate air pressure from the engine bay, which in turn cool down engine bay tempretures by drawing heat through the vents. Price is for a LH RH pair Laser Cut Aluminium Raw aluminium finish only Includes lazer cut support bezel for underside of panel 4mm Pilot Holes (Use your choice of Rivets or Fasteners to secure panel Not Included) Fins are easily angled with your fingers.