Ironman Pro Forged Front Upper Control Arms for Holden RG Colorado 7 Trailblazer 100 series bull bar Compact with shorter arms with IMALU CPY110 BINR Compact with shorter arms with single mirror The Ironman 4x4 twin breather kit is used to raise the height of your vehicles driveline components vents to help prevent water ingress by providing raised filtered ventilation Ironman 4×4 Pro Forge Upper Control Arms allow installation of larger tyres and further increased ride height by providing corrected wheel alignment and greater operating clearance around the arm as is often the limitation when using the OEM upper control arms machined or fabricated arm